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NormaTec Recovery

Buyer’s Guide to Pneumatic Compression Recovery Systems

Buyer's Guide / ByChristopher Glaeser



NormaTec Recovery

The market of pneumatic compression systems for sports recovery has grown and evolved over the last decade. While each system shares numerous design similarities, their pricing, claims, portability, muscle pressure, and compression patterns are all different. Nearly every professional team and top-tier college program uses compression in some form, whether wearable options, blood restriction bands, or pneumatic compression.

Compressions systems may help athletes cope with heavy training or dense competition schedules. Share on X

Recovery is of utmost importance to coaches and sports medicine professionals, and compression systems are one solution that may help athletes cope with heavy training or dense competition schedules. As of 2018, more than two dozen products have entered the market, but only about half of them have made enough traction to be included in our buyer’s guide. It features background on the medical history and theoretical benefits of pneumatic compression recovery systems, and a full explanation of how they function.

What Is Pneumatic Compression?

When air pressure is used to treat or support fluid circulation in the extremities, it’s considered to be pneumatic compression. Typically, the systems appear as a cuff, full-length inflated pants, or sleeves. An external air pump that is strong enough to inflate auxiliary sleeves at desired levels of pressure usually provides the external compression.

Pneumatic compression is intermittent, meaning the pressure is purposely not continuous and tends to be much higher than with compression garments. Pneumatic compression is measured in millimeters of mercury, and research includes the type and strength of the pressure in order to make comparisons and conclusions on equipment and alternative modalities. Compression is similar to hydrostatic pressure and has both health benefits and a potential role in recovery. Intermittent pneumatic compression (IPC) is sometimes described as sequential, since most systems provide a practical pulse up to the torso starting at the foot or wrist. Lastly, IPC is recovery, not a training modality, and is not to be confused with occlusion training.

Medical History of Pneumatic Compression

Like many recovery products in sport, most compression systems originated as medical devices. The most notable crossover was NormaTec, a solution that stemmed from an invention by Dr. Jacobs. In early 2007, it provided teams with their first sports recovery system. Later, other companies followed suit with similar systems, all employing air pumps and sleeves to facilitate recovery of the lower extremities. Today, dozens of systems exist internationally, with only a handful actually used consistently by professional and recreational athletes. To understand the pneumatic compression systems, readers should note a product’s medical past to invest smarter in not only compression solutions, but all recovery devices.

The three areas where intermittent pneumatic compression has strong carryover and success are lymphedema, deep vein thrombosis (DVT), and general medical needs that are complementary, such as diabetes and pulmonary embolism risks. Most of the interest lies in the circulatory benefits that can improve venous return and the mechanical support of the lymphatic system. Perhaps the most common question with sequential compression devices that are used in the medical arena is how they affect sports recovery, and that is discussed later in the theoretical recovery benefits section. Medically, the evidence for using compression for injury is not strong, but mechanical compression with external devices is supportive based on the pathology. Currently, the scientific literature defends the use of sequential devices for lymphedema and DVT, and other special cases with narrow parameters and limited outcomes.

Sequential pneumatic compression systems cease to be medical devices and become sport recovery devices mostly as a result of market positioning, as the designs and features are nearly identical. Manual therapy with athletes is as old as sport itself, so it’s no surprise that sports have gravitated to the device market along with self-therapy treatments.

Theoretical Recovery Benefits

Research on the recovery benefits of pneumatic compression tends to focus on performance enhancements before and after treatment, with little changes outside range of motion. Therefore, it’s likely that the benefits to athletes are more rooted in assisting the prophylactic needs of heavy sports training. Over the last decade, about 20 studies have investigated pneumatic compression devices and most saw responses in the following areas. Improvements in anaerobic and endurance performance have not been found, but it’s likely the systems supported by compression are not related to neuromuscular power.

It’s likely the systems supported by compression are not related to neuromuscular power. Share on X

Pain Modulation

Perceptual experiences in soreness and pain are theoretically possible, due to the temporary pressure around the working muscles. While measures in lactate and circulating creatine kinase do decrease, the actual research on pain levels are only reported. Therefore, it should be noted that compression devices may provide a transient change in comfort that is sensory; meaning they don’t reduce or block pain, just reshape the experience briefly.

Anatomic Restoration

Positive improvements in the ANS (autonomic nervous system) are commonly referred to, but it is unknown how lasting the effect is. A confounding challenge is determining whether it is the elevated legs or the placebo effect elevating heart rate variability measures, but the scientific literature does support positive improvements to the ANS for increased circulatory changes from compression systems. How much an enhancement DOES improve athlete recovery remains a mystery at this point.

Muscle Tonicity

Reductions in muscle tone are also theorized to be a part of compression, as range of motion improvements documented in the scientific research are evidence that short-term changes are likely to occur. It is not known how much enhancement there is to the neuromuscular system and how valuable those enhancements are, as very few longitudinal studies on muscle function and performance are available. Possible decreases in edema are likely to help relief of osmotic pressure, but so far, the research is scant on cellular adaptations.

Lymphatic Movement and Kinetics

Sequential pneumatic compression directly influences the movement of circulative lymph, as the lymphatic system is predominantly a passive system relying on human locomotion and movement. Several invasive studies have evaluated lymphatic support devices and found that, through tracing, lymph flow increases using the equipment. It’s not currently known if the athlete benefits from additional lymphatic circulation from external compression devices.

Circulatory Benefits

A proposed theory that circulatory engagement can improve recovery is slightly misleading, as the temporary reduction in passive lactate clearance is not actually recovery but an accelerated state of readiness. The research on blood flow using instrumentation has yet to see a lasting effect or improvement in muscle readiness, and not enough research on sports-related injuries is currently available.

Other theoretical adaptations and recovery theories are emerging, such as cellular responses similar to occlusion training, but it’s too early to include them at this time. Again, it seems that the athlete response is mainly a prophylactic experience that removes sensory discomfort from the area, and it’s perceptual. Most of the research that discredits the use of compression targets hard performance changes (that are unlikely to occur), but they are also important to show the limitations of the product. In short, the physiological changes during the compression treatment create an experience that athletes value, and new research shows its potential with healing, such as Achilles injuries and other ailments.

New research shows compression’s potential with healing, such as Achilles injuries & other ailments. Share on X

Key Features and Product Design Factors

Nearly every product on the market shares the same general design, meaning each system has an air pump and garment that applies a repeated pressure to the limb(s). Each system has air tubes, a controller, and heavy-duty inflatable cuffs or full pants and/or arm sleeves. Warranties and claims are all rather similar, but each company has its own customer agreement and limitations to its product use.

You should carefully weigh all design benefits when investing in a device, as one feature alone isn’t sufficient to make a difference unless it’s indispensable. For example, some systems don’t provide upper body options, so those features are likely to be of importance. Listed below are the primary features most buyers look for when purchasing pneumatic compression devices.

Levels of Pressure

Every system has its own level of pressure, but most ranges are far above 50 millimeters of mercury and the end range of pneumatic compression is about 130 millimeters. Most systems can be adjusted up and down based on comfort, and they can deliver higher ranges if they are higher performance models.

Sequential Pattern

Each pneumatic compression system has either a unique pattern of pressure application or a similar pattern of graded restriction. As mentioned earlier, the purpose of the term “intermittent” is to convey that the interplay of pressure and release creates the desired response, and the pattern of sequential compression that is ideal is yet unknown.

Chamber Design

The sleeves are often designed to have multiple chambers to create a more effective milking action, as most systems act like a tourniquet and move pressure, for example, up from the foot to the thigh. The optimal number and shape of chambers is unknown, but having five of them for the leg and arms is standard with most products.

Air Pump Size and Noise

A common complaint in the past was that air pumps were loud and created an unpleasant experience, but now they are nearly silent, small, and easier to control. Most of the noise comes from the initiation of gathering pressure from air compressors in the pump, but the release of air is also part of the sound. Most systems are currently not distracting or loud, but some are definitely quieter than others.

Battery Controller
Image 1. Expect the portability and control of pneumatic compression recovery systems to improve in the next five years. Currently, no product connects to the cloud or a smart device, but the next logical step is in that direction.

Cost

Obviously, the final factor for those on a limited budget is price. The cost of an entry-level product that is incomplete and limited can start around US$500, and most systems are more than twice that price. Durability and consistency for the application is expected, but each company offers unique warranties, as mentioned earlier. Some products are more portable than others, but almost all include a travel bag and can be brought as carry-on for air travel.

The Leading Recovery Compression Systems

If the list below was composed a few years ago, most of the products would still be viable, but there has recently been a lot of change in the market. The list doesn’t include general medical devices for edema or deep vein thrombosis, and only sport-specific brands are on it. Some systems employ cryotherapy features, but those add-ons are not necessary to benefit from compression. Here are seven systems that are popular in team and elite sport.

NormaTec Recovery

This Massachusetts company was one of the first sports recovery companies to get into the pneumatic compression market, and it’s a leader in both design and adoption. Not only does it provide multiple models for both regular and professional use, it also offers the most extensive auxiliary products, such as hip and arm sleeves. The NormaTec is internally cold and the system has been revised multiple times over the last 10 years. In addition to its patent pulse technology, it has setting options that allow the user to add more pressure to specific zones during the treatment. While the cost of the NormaTec is on the high end, its value lies in its durability and the design features that elite sport demands.

Squid Compression

This new company in the sports recovery market specializes in both portability and additional cold treatment for sports injury and recovery. Squid Compression’s products are single limb or small area only, and are more medical than recovery. They are ultra portable, as the air pump can fit in a user’s hand, and the sleeves can fit in an athlete’s backpack. The Squid wraps can provide local treatment to the elbow, wrist, thigh, knee, shoulder, and ankle. Included in the system is a cold pack, battery and controller, hose, and compression attachment. There are only four levels of pressure, but the product is more for sports medicine than recovery. For a price point, the products are in the under-$800 range, but they can only treat partial singular limb areas. The Squid is a U.S. product and distributed domestically.

RevitaPump

This Korean company has FDA clearance like the rest of the listed companies, and distributes both in the U.S. and internationally. RevitaPump has a 20-year history of supporting the medical community, and offers a complete line of sleeve accessories, such as waist, hip, arm, and, obviously, leg support. The product is considered a professional version and it is priced near the cost of other elite compression systems but is notably less expensive than the marquee products. RevitaPump claims their price is lower because they don’t do marketing events—it is around the $800 point. They provide a warranty for the product line.

Game Ready

Most of the attention Game Ready receives is in the post-surgical space, and their product’s strength is the cooling system it provides to athletes. The system features compression, heat therapy, and even contrast therapy. Game Ready is the most extensive system on the market, and has an appropriate cost associated with the vast range of modalities included. It is used in both the clinical setting and general recovery area, so it’s seen as a bridge from medical to performance. Game Ready is a California-based company, but its wraps and accessories are available in other countries outside North America. Their product is FDA-approved and considered a medical device, but it can be used to facilitate both injury and recovery.

Rapid Reboot

The Rapid Reboot is a prosumer product, as it’s priced to satisfy the higher-end weekend warrior and emerging elite athlete. Its standard leg system includes pants and a travel bag, and costs just under $1,000. Rapid Reboot provides a two-year warranty, and their pants have four specific targeted locations. In addition to leg recovery, the system also has options for upper body and hip recovery. Rapid Reboot is a new company, and is based in the U.S. (Utah). Currently, it has a product ambassador program, and sponsors athletes.

Air Relax

A lower-entry product, Air Relax provides a solution more geared to the recreational athlete and weekend warrior. With a price of $400 for a medium-sized pant, it’s likely that Air Relax is appealing to the general fitness space rather than elite sport. Air Relax is similar to other brands with chambers, pulse settings, and general design. Currently, there isn’t a lot of research on the system itself, as the science the company promotes on its website refers mainly to other products. The warranty is for one year, and the product can be used in other countries.

RecoveryPump

This product from RP Sports is considered professional-grade, as the features, design, and price are in line with NormaTec. The company also provides tubs and occlusion products, and it sells attachments and multiple product offerings such as an elite line of recovery compression. The RecoveryPump (lite version) is portable and has a controller that provides up to 100mm of mercury (pressure). The product has sleeves for arm recovery and even includes a jacket for more-demanding recovery sessions for the upper body. The U.S.-based company provides a partner program, and a money-back guarantee. JoHan Wang, a former NBA performance specialist, is RP Sports’ scientific advisor.

The list above is likely to change slightly in the coming years, but many of the products do have a great track record of solid sales and customer loyalty. So far, most of the interested markets are elite endurance sport such as triathlons and marathons, professional team sports, and CrossFit. The price point of more consumer-friendly products has grown the market to what it is now, and the new players will have to innovate to both meet the standards of compression recovery and do it at a price point the market will tolerate.

Final Recommendations for Compression Systems

Pneumatic compression is popular with athletes and the user experience is straightforward. Nearly every system is portable, with a price point that is affordable for recreational-level athletes. The consumer market is now sizable where cost-effective options exist, but most of them are not suitable for athletes or elite performers in other areas such as dance.

Expect future compression devices to be more ergonomic, with more supportive athlete rehab research. Share on X

In the future, expect more players to enter the market with refinements such as smart device control and more ergonomic designs to match to the anatomical needs of the body. In addition to the predicted design advancements, an increase in research on recovery and rehabilitation with athletes is also expected.

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Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF



Male Athlete

How to Simultaneously Train Speed and Strength for High Performance

Blog| ByBrady Poppinga

Male Athlete

The training of speed in a sports performance environment has been greatly overshadowed by strength training. Think of the common name attached to the profession: The majority of trainers in weight training facilities carry the title of Strength and Conditioning coach. Not Speed and Conditioning coach or Power and Conditioning coach. We are starting to see a movement toward using the title Performance Coach, which best encompasses the job description of these specialized trainers. Since their job is all about enhancing the performance of an athlete on the field, court, or course, this is one step among many that acknowledges there is a lot more to enhancing the performance of an athlete beyond just strength training.

I am NOT proposing that strength training is any less important an element of performance training now than it has been before. What I am proposing is that strength, combined with other performance elements, is a far more secure foundation to build a training regimen upon, than just it by itself. That’s because strength is an elementary quality. It can’t be broken down any further into a simpler form. Meaning, strength needs to be combined with other elements of training, or its use is extremely limited.

Strength needs to be combined with other training elements or its use is extremely limited, @BradyPoppinga. Share on X

Being strong as a high-performance athlete isn’t enough. Contrast that to when you mix speed with strength: That combination of putting strength into motion makes it relevant for athletic performance. By itself, strength cannot be foundational, but is instead part of the elements whose sum makes up the foundation.

One way to better illustrate strength being more of an elementary quality than a foundational one is by looking at water. It is hard to argue that any substance is more foundational to life than water. Every place that there is life, there is water1. Looking at the makeup of water, it requires the simultaneous mixture of two essential elements: hydrogen and oxygen. Both of these, by themselves, cannot sustain life2.

The same analogy applies to the realm of sports performance training. If a coach fails to simultaneously mix all the elements of performance training—such as strength, speed, and efficient movement patterns, to name a few—then optimal performance isn’t attainable. For example, if an athlete moves inefficiently while lifting heavy, the likelihood of injury drastically increases. If an athlete is hurt, he/she can’t perform. Two elements that have been extremely challenging to mix simultaneously are speed and strength.

Targeting Peak Power

If you walk into the majority of performance training facilities, you’re going to find training tools comprised of barbells, weight plates, dumbbells, med balls, single station machines, functional trainers, and other similar contraptions. Barbells, dumbbells, machine weights etc. are excellent for training strength. Med ball throws and functional training machines are perfect for training speed3.

These tools do an excellent job of emphasizing strength or speed, but are unable to produce simultaneously high levels of speed and strength that translate into peak power output. Peak power is what all performance coaches ideally want their athletes to train and enhance. If an athlete can improve their peak power output, their performance on the field, court, or course will also most likely improve. Although these tools are extremely effective and will always have a place in performance training, they will never train peak power output.

In addition to the mainstream training tools, strength training has been the go-to metric for defining the effectiveness of a training program. It’s far simpler and more convincing to validate the effectiveness of a training routine using the 1 rep max and strength gains as metrics of success. It’s also a lot more fun, not only for the athletes, but for the coaches, to see big jumps in 1 rep maxes.

When I played, there was always something special in the air on “max days.” You felt fresh, and carried a lot of pent-up energy. The anticipation brought the uneasy butterfly feeling because you knew you would be getting under and attempting to lift loads that were the size of small cars. On every max attempt, everyone in the room would freeze and focus on the person going for their best lift. You wanted to pull through for your teammates. You fought for your max lift, throwing out all types of technique or proper form, because you would be damned to let your teammates and coaches down.

After racking the weight, you would be in a daze with lightheadedness from the lack of oxygen through your brain. As the haze cleared, you would hear the roar of your 100 or so teammates that sounded like the roar of a 70,000-seat stadium. Adrenaline flowed through the body. It was a high.

A culture tilted heavily toward strength training leads to imbalance in optimal performance training, says @BradyPoppinga. Share on X

Those “max days” are some of the most fun and most unifying days for a team. The type of training tools, along with the concrete metrics that come from emphasizing strength, have led to a culture tilted heavily towards strength training. This creates an imbalance in optimal performance training.

Why Train High Levels of Speed and Strength in One Continuous Movement?

When executing simple, competitive movements, the ability to generate high levels of strength and speed instantaneously, in any given moment, relates to the athlete’s movement proficiency. This means the more speed and strength that is simultaneously generated in a given moment, the more it will lead to running and accelerating faster, increasing explosiveness, jumping higher, and changing direction quicker.

Performance trainers shouldn’t feel like they are failing their athletes because of their inability to train speed coupled with strength. This isn’t a function of a lack of knowledge or laziness, for the most part. This is a function of what has been known and what has worked up until this point. But things continue to evolve. The question then is, what kind of capabilities would a training tool have to have to optimally train speed and strength in one continuous movement that would produce top-notch power generation?

First, it would have to be a tool that allows the user to throw or let go of the bar at the top of the lift. No matter how fast a lifter moves the bar, if they hold onto it, they work more deceleration than acceleration. The National Strength and Conditioning Association’s Basic Guidelines for the Resistance Training of Athletes state that “performing speed repetitions as fast as possible with light weight (e.g., 30-45% of 1RM) in exercises in which the bar is held on to … must be decelerated at the end of the joint’s range of motion (e.g., bench press) to protect the joint.”4 That is because the bar is purposely being decelerated to finish the range of motion. Studies based on 1RM bench presses show that the bar decelerates for the final 24% of the range of motion. At 81% of 1RM, the bar decelerates for the final 52% of the range of motion5.

Second, after throwing or letting go of the bar, the training tool has to be able to catch the weight for the lifter6. In a study of 20 male athletes, 10 trained doing jump squats with a brake (no catch) and 10 did jump squats without a brake (catch). They were then tested following a strength cycle to assess which group improved the most in terms of peak power output. The group that did jump squats without catching the load improved their power output more than the group that had to catch the bar, proving that “no catch” equals more power gains.

Also, there is an injury prevention benefit in being able to avoid catching a falling, loaded barbell. Those athletes who didn’t have to catch the bar experienced far fewer ground impact forces that led to injury than the group that had to catch the weight. There is a dual benefit of not having to catch the falling weight7. Not only does it lead to higher power development, but it also helps reduce wear and tear on the body.

Lastly, this training tool needs to have the ability to load the right amount of weight. Even if you let the bar go at the top of the lift without having to catch the bar, if there is too much or not enough of a load, peak power output will be unattainable. The ideal load for power training was discovered in a study of bench throws where “55% of 1RM was most effective in generating maximum power output.”8

In review, a training tool that gives the lifter the ability to throw or let go of a loaded bar without having to catch it will most effectively combine speed and strength training in a weight training environment. Many performance coaches looking to incorporate speed into their training, but don’t have a training tool like this, use a method known as the “elastic equivalent.” Basically, after doing a bench or a squat, the athlete performs a plyometric-based movement that is equal to a bench (chest pass with a med ball) or a squat (jumping on a plyo box). The objective is to achieve, with two separate movements, the simultaneous training of speed and strength. The challenge is creating the bridge to where the muscles have to adapt to the stimuli of both speed and strength in one given moment. Since those are two separate movements, done at different times, the simultaneous mix of speed and strength just isn’t there.

Implementing Propulsive Training

When introduced to a new training method, the first challenge is implementing it as an enhancement to an already-effective training program, instead of it cannibalizing what has been proven to work over time. It’s all about making a tweak for improvement, not simply making a tweak without any gain. What is seamless about this type of training is that it uses already popular and simple movements like squats and bench presses, along with their variations. The only difference is letting go or throwing the barbell at the top of the lift.

The one training tool that possesses all the necessary components to pull off propulsive training is the XPT. I developed this training tool while trying to figure out how to best train power, and at the same time diminish wear and tear on the body. I was inspired to create the XPT’s design after doing snatch throws while I was with the Green Bay Packers under their excellent performance coach, Marc Lovat. Much of what I know about the performance space has come from his teachings, but also from his challenge to us, as players, to do the research ourselves on optimal performance training. Rather than having us do stuff just to do it, Marc encouraged us to study the whys. It’s far more impactful when you train to know exactly what you want to achieve, rather than just blindly doing what a trainer asks.

When we did the snatch throws, I could feel an engagement of the muscles—especially in the glutes—and a pop unlike any other form of lifting I had done. Unfortunately, we only did that one day. With it raining barbells and having them bounce in all directions, it was a good move by Marc to weigh the risk versus the reward, and end that practice. However, that movement of throwing a loaded bar stuck with me. From then on, it was always in the back of my mind: How to throw a loaded barbell, but not have to catch it… nor have it fall and randomly smash someone. I could sense there was a great benefit to it. Clearly, after much research, I understood why I felt the way I did while doing those snatch throws.

Throwing a loaded barbell without having to catch it opens up potential in performance training, says @BradyPoppinga. Share on X

About five years ago, I put the design together for a barbell attached to a self-spotting or braking system that is controlled with brake handles. The self-spotting mechanism works like a clutch. You grip the brake handles and hold onto them to release the bar and perform the desired lift. As soon as you let go of those handles, the self-spotting mechanism engages and the bar comes to a complete and abrupt stop (see Figure 1), allowing the lifter to throw a loaded barbell without having to catch it. This opens up many new possibilities for performance training.

XPT Athlete Lifting
Figure 1. The XPT features a barbell attached to a self-spotting system controlled with brake handles. The user grips the brake handles and holds onto them to release the bar and perform the desired lift. As soon as the user lets go of those handles, the self-spotting mechanism engages and the bar comes to a complete and abrupt stop, allowing the lifter to throw a loaded barbell without having to catch it.

 

Integrating these propulsive lifts is simple. For example, you can sprinkle these lifts into a traditional bench or squat workout. Let’s say you were doing five sets of four to six repetitions at 75-80% of 1 rep max. Take two to three sets, drop the percentage 20-30% (from 75-80% down to 45-50% of 1 rep max) and instead of holding onto the bar, throw it, in the case of bench throws, or let it go while doing squat jumps. Choose between rotating every other set with propulsive and traditional movements, or start with one and finish with the other (or vice versa).

The main point is balancing the strength-centered movement with one that combines both strength and speed in one continuous movement. Not only will the muscle response be unpredictable, but the lifters will begin to feel a little more “pop” in all of their movements because of the triggering of the deep neurological muscular system that comes from throwing the bar.

Another way to integrate the propulsive movements into a training regimen is to have that be the theme of the day. For example, let’s say you worked a four-day split with an upper body day on Monday and Thursday and then a lower body day on Tuesday and Friday. You could take Monday and Friday and make them purely propulsive days. On all your major lifts, like squat and bench and their variations, the load would match up with the phase of the cycle.

For instance, on those days you work four sets of eight with a load of 65% to 75% with traditional lifts, all you would do is adjust the load down about 20% to 30% to where you could still explosively throw or let go of the barbell at the top of the lift. If the athlete isn’t able to explosively throw the bar, decrease the load 5-10 lbs. Then, as you increase the load and begin to decrease the repetitions, you move along that same kind of percentage scale that you would use for traditional lifts—but subtract 20 to 30 percentage points of the movements where the bar was held onto. The advantage here is mixing in two explosive peak power days: one that emphasizes upper body and the other lower body.

This will increase the athlete’s peak power output while also reducing the wear and tear of lifting, says @BradyPoppinga. Share on X

Either way it’s integrated, the propulsive movements will train speed in a weight training environment that will match strength development. Peak power output among the athletes will increase, as will performance potential. The best part is that all of this will happen while also reducing wear and tear on the lifter. Imagine lightening the load, but reaping more benefits.

In this scenario, strength training will mean more than ever to the athlete because of its constant mix with speed training. Just as mixing oxygen with hydrogen produces the foundation of life, mixing the proper amounts of speed training with strength training in one continuous movement will build a strong foundation for the performance of those very movements at a high level in competition.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF


References

1. “Why Is Water So Essential for Life? – Live Science.” 29 Sep. 2015. Accessed 26 Aug. 2018.

2. “Chemical compound – ScienceDaily.”  Accessed 26 Aug. 2018.

3. Beardsley, C. (23 July 2013). “How is ballistic training different from traditional resistance training?” Strength and Conditioning Research. Retrieved 24 March 2014.

4. Pearson, D, Faigenbaum A, Conley, M, and Kraemer, W. “The National Strength and Conditioning Association’s Basic Guidelines for the Resistance Training of Athletes.”Strength and Conditioning Journal. 2000; 22(4):14.

5. Elliot, BC, Wilson, GJ, and Kerr, GK. “A biomechanical analysis of the sticking region in the bench press.” Medicine and Science in Sports and Exercise. 1989; 21(4):450-462.

6. Hori, N, Newton, RU, Kawamori, N, McGuigan, MR, Andrews, WA, Chapman, DW, and Nosaka, K. “Comparison of weighted jump squat training with and without eccentric braking.”The Journal of Strength and Conditioning Research. 2008;22(8):54-65.

7. Humphries BJ, Newton RU, and Wilson GJ. “The Effect of a Braking Device in Reducing the Ground Impact Forces Inherent in Plyometric Training.” International Journal of Sports Medicine. 1995; 16(2):129-133.

8. Baker, D., Nance, S. and Moore, M. The load that maximizes the average power output during explosive bench press throws in highly trained athletes. Journal of Strength and Conditioning Research. 15(1): 20-24. 2001.

Male Runners

Training Zones, Mileage, and Mentality for Runners with John O’Malley

Freelap Friday Five| ByJohn O'Malley

Male Runners

John O’Malley coaches cross country and track at Sandburg High School in the Chicago area, while teaching English during the day. John is well-known for the success of his 4×800 teams, and his slowest season-best time in the 4×8 since 2011 was 7:46.89. Sandburg’s average season-best time in the 4×8 since 2011 is 7:43.49. John has coached 15 different quartets to sub 7:50 (32 different quartets to sub 8:00), and has been a guest on a number of running-related training outlets.

Freelap USA: What’s your take on mileage for a high school runner? How much individualization goes at this point, and what’s your philosophy on preparing them for the next step in college?

John O’Malley: There should be plenty of individualization. When making decisions on volume, I believe we should consider: age, training age, emotional and physical capacities and skills, weather, mechanical issues, athletic history, and the season-long progression. Some of these areas should have obvious interventions and adjustments of volume. I think some areas are widely neglected by distance coaches. I believe that simply evaluating volume is a critical mistake and that athletes need to learn how to move well before you even attack the issue of volume.

How you move is more important than how much you move. This isn’t even getting into the obvious relationship of movement to injury prevention. To me, it is a critical way to circumvent injury, but it’s more of a competitive reasoning to prioritize movement patterns. You will be a better runner if you move better and then you can move progressively more (i.e., volume).

How you move is more important than how much you move. Share on X

As far as preparation for college, I think the simple evaluation of mileage as a means to prepare for college is really lazy and easy and wrong. If you are withholding four years of speed development, four years of improving mechanical idiosyncrasies, and four years of skill development, then you are being irresponsible as a coach. I hear people talk about being irresponsible at the high school level with volume, but never with these other areas.

If I was a college coach, I’d want a kid who progressed in volume, but more importantly progressed in speed, skill, mobility, stability, and a variety of training paces. That’s proper preparation for the next level. The specific volume amounts need to be individualized and they vary greatly. As distance coaches, we still need to face the reality of building mitochondria and that requires an attention to volume. But to express this aerobic power, you need to be able to express yourself powerfully with movement patterns.

Freelap USA: For distance and mid-distance, how do you approach the balance of steady low-intensity mileage versus speed work? Is there much of a mid-zone you work with?

John O’Malley: Some of this is addressed in the previous question. We don’t do much “mid-zone” running for middle distance training. We are pretty polar with paces. I believe the theory of speed reserve is applicable to any event distance. Additionally, probably around 2008-2009, I stopped counting miles and instead decided to focus on more important metrics in deciding how much volume we do:

  • How much faster are we getting?
  • How well are we recovering?
  • How easily do we move when doing specific work?
  • How is the athlete feeling?

Our recovery days are probably far less volume than a lot of program’s recovery days. Additionally, I think a tool that a distance coach can use is max sprints or short acceleration sprints up a steep hill for less than 10 seconds, and they can serve as a recovery mechanism at the right time of the season.

The positive hormonal and chemical production for explosive activity without inducing additional fatigue can result in better recovery. I’m talking about testosterone, growth hormone release, etc., without the need to utilize it for activity; therefore, there should be some benefit to recovery. I theorize here a bit, but I suspect it is a tool that can be effective for a distance coach who is balancing volume, speed, and recovery in extreme ways.

Additionally, I am constantly suspicious of our progress in strength and fitness getting in the way of being fast. So, even though distance runners need volume—some of it slow—I want to make sure they are connecting in fast, efficient neural ways all the time. This is not to be confused with work that buries kids.

I am constantly suspicious of our progress in strength and fitness getting in the way of being fast. Share on X

An example would be to replace a traditional “20-minute cooldown” (with no further instruction) after a heavy load (race, workout, etc.) with short gear shifts while running—perhaps a fartlek. Get them to fire neurologically, get them to reinforce good technique while fatigued, get them to be attentive to the task.

Freelap USA: What’s your take on the mental side of running? Do you do any special work here for your groups? Do you tend to favor it for some athletes more than others?

John O’Malley: Yes, we do a lot of mental training. First of all, I believe that the best and first way to get someone to improve their mental performance is to help them become aware of their mental performance. What is their habit loop? Once they have some self-awareness, we can start to build new habits with strategies and experimentation. How do you get an athlete to become self-aware? Spend time on it. We all know how important mentality is to performance, but we, as coaches, often spend less than 5% of practice time on it.

The best way to get someone to improve their mental performance is to help them become aware of it. Share on X

I often give athletes psychological goals for workouts. I also put them in different situations to get them to be adaptable and self-aware. Debriefing afterward is important. This is not classroom stuff. Some of it can be, but I think it’s best when you give athletes a specific tool and ask them to use it in practice.

I was thinking about adaptability and I think it’s sort of a paradoxical skill. The more I research and the more I reflect, the more I feel like a skill of being adaptable is one in which you rely on a predictable, pre-conceived, practiced skill in the context of something that’s not predictable. In fact, most skill sets are paradoxes. To be courageous, you need to do things you’re afraid of. Within the context of races, we have our athletes complete race reflections in which they evaluate their decision-making before and during a race. Note: You must first view psychology and success as a decision-making process.

Freelap USA: How do you utilize time as opposed to distance in writing workouts? What was your progression that led you here? How does it differ across various workout emphases?

John O’Malley: I think, by and large, we underutilize the greatest metric-producing device in the known universe: the brain. What I like about using time as opposed to distance is that it embeds an infinite number of factors into the stimulus. Stress levels, motivation, physical maturation, weather, CNS readiness, talent, athletic history, gut biome…anything you can imagine…all are integrated into this amazing metric that calculates all factors that impact stimulus to this complicated environment called the human body.

How do you get that metric? Ask the human. Do responses vary? Are some athletes overdramatic and some stubborn? Do we surprise ourselves with how ready we are on some days? Do we overestimate ourselves on other days? Yes.

The human body is the best metric I know. Share on X

The better you know your athlete, the better you are at interpreting this data piece, but even with the potential for influences, it’s the best metric I know. So, this relates to time measurements as opposed to distance measurements because it translates those influences. Let’s assume all elements are 100% equal (impossible, but let’s do the thought experiment) and it just happens to be 90 degrees out with 100% humidity. We need to get a 10-mile run in. Compared to an ideal weather condition, that 10-mile run will vary by time duration by as much as 15-20 minutes with the same level of perceived effort. So I just translate it to time and let the brain do its job.

Ten years ago, I would have said 10 miles, now I say 70 minutes. As far as workouts are concerned, I believe you analyze the stimulus and translate that to duration. A heavy anaerobic interval may be :45 long. For some kids, that’s 300 meters; for other kids, it’s 250.

My favorite example is the very classic distance coach holy grail called the 20-minute tempo run. It’s also called lactate threshold. Also, anaerobic threshold. Whatever. Ok, so the classic Jack Daniels training manual calls on the 20-minute threshold run. Sounds good…especially with trained collegiate or post collegiate athletes. Most freshmen in high school CANNOT reach the physiological state of lactate threshold and sustain it for 20 minutes, so it’s really just a mess. My point is, you have to evaluate age—training age—and apply that to the physiological goals of the day in order to determine how much time it takes to elicit the stimulus you seek.

Freelap USA: What is your attitude towards tapering and peaking for distance runners? Towards championship meets, what tends to change? How much of tapering is outside of the workouts themselves?

John O’Malley: The short answer is “not much.” Psychologically, we are finalizing tactical decisions, coping strategies, and optimal zones for performance. This is the result of experimentation and reflection from the process of the season. At this point, I am thinking and saying: “Let’s make some conclusions and reflect on our skill set and ready that skill set for execution.”

We are also leading with our “why.” This can’t come out of left field or be inauthentic. It’s something we’ve been developing all season. Why are we engaging in this goal? I hate wasting time. Sport and activity should mean something, and it better not be the result of some coaching manipulation in an attempt to attain coaching achievements.

You can do this—plenty of coaches do this. Have you seen the stories of some prestigious collegiate coaches in the last year? I just don’t want to be that coach. I’ll fire myself when that day comes. I’d rather be with my family than win a state meet. But if I am going to be at state, it better have a soul to it. It better have meaning and make us better and stronger human beings. So, whatever that meaning is, we lead with that. It’s what we talk about and focus on most.

My method of physical preparation involves observing patterns that have worked well with individual athletes in the past. This requires experimentation and embracing failure throughout the season. This requires thinking. Aside from that, I will never utter the famous words, “the hay’s in the barn.” We are fresh and still improving; we are focusing on muscle tension and neuromuscular connectivity.

My physical preparation method involves patterns that worked well with individuals in the past. Share on X

Two days before a race, I like moving fast in controlled efficient ways much better than just going for a run. I give them more recovery, a little more specificity, but maintain frequency of workouts in the final two weeks.

Freelap USA: What’s your take on developing technique in distance runner stride, and how much emphasis are these things given? What’s your thought on the idea that the mileage run will build the technique?

John O’Malley: Mileage will not build technique. The only way it can possibly build technique is that fitness reduces fatigue and by-product, therefore theoretically making it easier to have proper technique. But if you haven’t worked on technique or have some cognizance of proper technique, it’s irrelevant. I am not a biomechanist, but we do have some cues and some check-ins.

Arm pattern, hip placement, alignment, and evaluation of stability are all a part of watching how they move. I think most of this is best improved through movement. I try not to overcomplicate cues or explanations. Athletes need to feel their patterns and I am also concerned about creating new issues with overly complicated interventions. There needs to be some awareness though.

I think a short, steep hill interval is an interesting tool to use for development of better technique. Many bad movements right themselves through the hill resistance—it’s pretty hard to land on your heel too far in front of your center of gravity, for instance.

A short, steep hill interval is an interesting tool to use to develop better running technique. Share on X

Imagine if you have a new runner with minimal athletic history and terrible strength, mobility, and stability. Start running miles and keep building, right? Imagine, instead, that you have that kid sprint for short durations. Imagine he sprints uphill another day for short durations. Imagine you get him to move on multiple planes and get his feet to move quickly. Imagine if you gave this kid a jump rope. Which one produces the better runner?

Freelap USA: How do you approach the entire year of work for a high school distance runner who likely doesn’t do other sports in terms of rest periods or encouragement to do something else for a time period?

 John O’Malley: As I’ve mentioned, I am a builder of mitochondria, so more running throughout the year is helpful to our goal task. In addition, as I’ve already noted, I am hypersensitive to building athleticism and speed. What this means for a year-round calendar is that, for someone who trains year-round primarily as a distance runner, I am supremely responsible for their athletic development, not just building mitochondria.

They need rest after a long season, emotionally and physically. Beyond that, we focus on all elements of athleticism and speed all year ’round. It’s there from week one to the final week of the season. It’s a priority. It is there, in part, to make up for their lack of development in these areas by virtue of playing other sports.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF



MMA Fighters

Applying the Compressed Triphasic Model with MMA Fighters

Blog| ByWilliam Wayland

MMA Fighters

My advocacy of triphasic training developed by Cal Dietz and expanded upon by Matt Van Dyke is well known. As a proponent of the method’s principles, I’m endlessly trying to find ways to amplify its positives while mitigating the negatives—as would any good coach when applying any system or principles.

Tackling the sport of MMA is challenging and not a task many people would think would marry well with intensive work like eccentrics. Time limitations, muddied stimuli, and the need for a wellspring of differing qualities can make the MMA athlete an athletic Gordian knot of sorts. MMA fighters are athletes at a crossroads of competing, middling demands. Just giving athletes lots of variable stimuli, often in the guise of well-intentioned sport-specific training and energy systems work, adds to the confusion. This is a rapid way to achieve very little but look good doing it.

I concluded a long time ago that, to move the needle, we need to punctuate regular training with intensive stimuli. Imposing intensive physiological demands, especially once momentum builds, can be sustained by athletes cyclically, even those with cloudy schedules such as MMA fighters. Common thinking believes this imposition will lead to ruin. Bob Alejo wrote about how intensive stimulus can build robustness and injury tolerance, even when athletes are under duress due to their competition schedule. Like Bob, I abhor the idea of maintenance.

I liken the MMA training cycle to being “in-season” almost constantly, especially at low to mid-tier levels of the sport where, let’s be honest, the bulk of athletes operate (not everyone is in the UFC). Taking examples from others sports, we know intensive in-season work, once habituated, builds robust athletes. After I started applying compressed blocks—punctuated 3 to 5 times throughout a year, usually between 12 to 8 or 6 weeks out for MMA fighters—we saw sustained strength and power levels throughout training camps during peaking thanks to the incredible residuals this approach yields.

While this article focuses on my idiosyncratic approach to applying the method to MMA fighters, hopefully there are lessons others can glean from marrying an intensive method to an athlete, which poses the most issues for strength and conditioning coaches.

The traditional MMA model is predicated on an 8- or sometimes 12-week fight camp. The camp is a period of intensification: high volume sport loads and voluminous conditioning approached with a focus on game- and round-based conditioning. This is often combined with low caloric intake to make weight and is preceded by a variable GPP program, which can be long or short (and the not-knowing can make life hard for strength coaches).

GPP usually consists of aerobic base building, maximal strength work, and very general technical training or brushing up on perceived technical shortcomings from the fighter’s last bout. Often, GPP is dropped immediately when a date is announced. This can make it hard for fighters to do intensive strength work consistently, especially when athletes strive to stay in fight shape for prolonged periods or take long breaks post-fight. By focusing on a cyclical back and forth between intensive and non-intensive sport-focused cycles, we can keep athletes primed without wearing them down.

Traditional 8-Week Out Model

When a fight is announced, we move to an acute SPP block to prepare. How quickly we break off the cyclical model is determined by the length of time the athlete has before their fight.

GPP MMA
Figure 1. For an MMA fighter, when a fight is announced, we immediately move them to an acute SPP training block to prepare.

For instance, a 12- to 16-week time frame allows the athlete to stay on the cyclical model to finish out the accumulation of their current training stimulus. Eight weeks or less, however, requires the athlete to break off the cyclical approach far sooner.

There should be no problem jumping straight from compressed intensive training to high-velocity peaking—in fact we may see some serious potentiation from such an approach. One caveat that I’ll add is that an intensive GPP block for athletes with a low training age is conventional submaximal lifting, which I’m happy with up until the athlete develops a competency.

GPP SPP MMA
Figure 2. MMA fighters can jump straight from compressed intensive training to high-velocity peaking.

 

Application of Supramaximal Training and Training Compression

Compressed intensive training is a period in which we apply the greatest stimulus to accumulate the desired response in the shortest time possible—this is where we apply supramaximal training. Supramaximal training is one of the approaches that excites muscular physiologists, as it leads to rapid adaptations and a reduced need for the repeat exposures we get from the same contraction focus at submaximal loads. Time, as a commodity, is always in short supply.

The question I often get asked is why apply supramaximal training at all when submaximal loads do a perfectly good job. I hear the clichéd statement in strength and conditioning about “all roads leading to Rome”—to me, this is relativistic tosh. Isn’t the best road the one that gets us there the fastest without the wheels falling off?

Very high-intensity, low-frequency training seems counter-intuitive for the coach who has a maintenance mindset. I’m not in the business of babysitting athletes: opportunities are available to add powerful stimuli when timed right. Supramaximal training is nothing new; it’s been a staple of athletes with long off-seasons and massive strength requirements for some time. I recall seeing early YouTube videos of suffering bobsledders with three spotters performing supramaximal back squats with 120% of their max for 10-second durations, and thinking most athletes could tolerate such a load.

MMA athletes need to be very strong, according to UFC Performance Institute performance director Duncan French at the recent UKSCA conference (I’m paraphrasing): Striking occurs in 200ms or less. Ninety percent of the variability in RFD can be accounted for by maximal strength. Given this primacy of strength, we have a slew of training options available to us—but “all roads lead to Rome, right?” I argue, again, don’t we want the fastest route? I’ll take the one that gives us the greatest depth of strength qualities trained, not just concentric-focused number-chasing.

Supramaximal Eccentrics

Eccentric muscle and neural action are enormously load-tolerant and physiologically different from their isometric and concentric counterparts. This is due to differing motor unit recruitment during muscle lengthening compared to muscle shortening. During eccentric movements, the motor pool is less activated, leading to the activation of fewer muscle fibers.

To quote Matt Van Dyke, “The fact that fewer motor units are activated means there are fewer myosin head attachment sites during this eccentric movement phase. These fewer myosin-actin attachment sites lead to increased stress on those filament attachment sites that are being used.”

Eccentric movements cause both muscle fibers and tendons to absorb high amounts of force, as the muscle resists lengthening under load. Carl Valle explored the value of eccentric training in an earlier article, which offered exercises that are rather targeted but make for great introductory eccentric application. We can, however, amplify all the positives using supramaximal loads and systemic full body stress, which means the stress on each myosin-actin structure is increased to an even greater extent than with ordinary submaximal eccentrics—basically, all the benefits of eccentric training turned up to 11.

A 2010 study suggested: “The enhanced eccentric load apparently led to a subtly faster gene expression pattern and induced a shift towards a faster muscle phenotype plus associated adaptations that make a muscle better suited for fast, explosive movements.” The training led to significantly increased height in a squat jump test versus conventional training. This was accompanied by significant increases in IIX fiber CSA.

In Jonathan Mike’s great NSCA classic, he mentioned that “In addition, the energy cost of eccentric exercise is comparably low, despite the high muscle force being generated. This makes eccentrics an appealing strategy for those wishing to gain additional strength and hypertrophy because of the fact that more volume can be performed without excessive fatigue.” The lack of excessive fatigue is part of the reason I’ve forged ahead so keenly with applying this type of training, especially in a population that has to deal with as much fatigue as MMA athletes.

The neural hangover from #supramaximal eccentrics is less than I anticipated, says @WSWayland. Share on X

For those who try the method, yes acutely supramaximal eccentrics are fatiguing, but I’ve found the neural hangover to be less than anticipated. The primary drawback is managing DOMS. In the same NSCA article, Mike also mentioned: “Research focusing on the effects of overload training (100–120% 1RM) during the eccentric phase of a movement has routinely demonstrated a greater ability to develop maximal strength. Research by Doan et al. reported that applying a supramaximal load (105% of 1RM) on the eccentric phase of the lift elicited increases in 1RM concentric strength by 5–15 lbs.”

Supramaximal Isometrics

Supramaximal isometrics are the second act of the supramaximal method. Ostensibly, an athlete could derive an enormous amount from just eccentric focused supramaximal training, but muscle action is a three-part process.

To quote another Matt Van Dyke article, “By training isometrically in a supramaximal fashion, greater tissue adaptation is realized within the muscle. This adaptation occurs as muscle fibers are fired and re-fired throughout the duration of the repetition to the greatest extent with supramaximal loads, even though no movement is occurring. The adaptations occurring within the tissue through this training maximizes the free-energy that is transferred throughout every dynamic muscle contraction and the SSC.”

Supramaximal isometrics force an athlete into a hard-braced position, no less grueling than its eccentric counterpart, but the feel is different. We’ve noticed that some athletes prefer isometrics to eccentrics, especially those athletes with a grappling base, as sustained isometrics are a constituent element of their sports. According to Yessis,“The isometric contraction is less intense than the eccentric, but up to 20% greater than the concentric and plays an important role for developing greater stability for better execution of strength exercises.”

The notion that isometrics are only any good for the joint angle trained is an outmoded one. We’re realizing that isometrics have a systemic effect, including changes in neural drive and cardiopulmonary effects due to the immense pressure placed on the system.

The outsized stressor of #SupramaximalTraining causes an outsized rebound of positive qualities, says @WSWayland. Share on X

Training compression is the yielding of favorable adaptations in a shorter time frame than would be considered “normal.” The outsized stressor supramaximal training brings causes an outsized rebound of favorable qualities. After single doses, I’ve seen improvements in jump values between sessions, possibly due to latent potentiation. Obviously, stretching any adaptive window beyond its limits will cause a breakdown an athlete can’t recover from—this is why subsequent supramaximal training exposures are short, intense, and limited.

MMA Sparring
Image 1. Sparring and grappling sessions contribute to the training load for MMA fighters.

As a population, MMA fighters generally handle high volumes of middling intensity, and the wear and tear of these athletes under these volumes mean that strength training often orients around exercises in under-loaded novelty. The idea is strength and conditioning, not stuff and conditioning. We achieve strength by making the strength training a short, but sharp, stimulus during which we induce residuals that carry the athlete through SPP phases and up until a fight. The change in thinking means having the bravery to get stuck into the application of what outwardly is the most intensive method available as coaches.

Application

Generally, load tolerances with supramaximal eccentrics are idiosyncratic to some extent, but they have the potential to be at maximum 140%-160% of an athlete’s given maximum. This 1RMECC is difficult to ascertain, but there have been theoretical maximums of 160%+. For the sake of safety, keep athletes below 120%. While higher tolerances are achievable, there does come a time when we have to draw a line under what we can achieve safely.

The Conventional Supramaximal Method

Conventional sequence systems for supramaximal training are intended to be sequenced over longer periods to allow for adequate adaptation and recovery.

Table 1. Conventional Supramaximal Program
Weeks 1-2 Week 3 Week 4-5 Week 6 Weeks 7-8 Week 9+
Eccentric 105-120% De-load Isometric 105-120% De-load Concentric 80%+ Concentric 55-80%
Day 1
115-120%
Day 2 90% Day 3
105-110%
Day 1
115-120%
Day 2 90% Day 3
105-110%
Day 1
75-80%
Day 2
85-90%
Day 1
55-62.5%
Day 2
65-72.5%

 

When applying supramaximal blocks for 1-2 weeks, you perform eccentric lifts at 120%-110% of your max on Monday, normal 90-97% lifts on Wednesday, and 110%-105% eccentric lifts on Friday. De-load for one week and perform the same with isometric squats. Then perform another de-load. This is followed by two concentric weeks at 80/90/72 per normal triphasic training undulation. The de-loads are intended to give soft tissue a recovery opportunity, as supramaximal eccentrics and isometrics induce very high levels of DOMS.

The Compressed Supramaximal Method

Because of the unpredictable nature of the MMA fighters’ schedule, we use a compressed sequence. In effect, we remove the de-load weeks and jump straight to a high-force high-velocity training block. Because we only have two lifting days and we removed the heavier concentric work, we can afford to take out the de-load sessions.

I’ve used this compressed approach with UFC fighters and high-level amateurs alike, and have great returns in improved MTP and jump numbers, as well as numbers in their conventional lifts.

Table 2. Compressed Supramaximal Program
Weeks 1-2 Weeks 3-4 Weeks 5-6
Eccentric 105-120% Isometric 105-120% Concentric 55-80%
Day 1
115-120%
Day 2
105-110%
Day 1
115-120%
Day 2
105-110%
Day 1
55-62.5%
Day 2
65-72.5%

 

Exercise Choices

While I like keeping the stimulus consistent, you could alternate during the two days between a bilateral and a unilateral option. Systemic stress still being total, and movements being somewhat similar, we should yield similar results. Note that all the movements are squat-focused over any deadlift/hinge pattern: overloaded hinge is difficult in all but submaximal eccentrics and flywheel-type work. The sheer on the lumbar would make any purer supramaximal hinge movement potentially very, very risky.

We're not building powerlifters so the exercise is less important than the stimulus, says @WSWayland. Share on X

I’m occasionally asked, “Why not use conventional back squat?” While this is a potential option, it comes with a number of risks: intense T-spine discomfort, the need for three spotters, and risk of T-spine collapse, which can cause the athlete to fall forward. We’re not building powerlifters here, so the actual exercise chosen is less important than the stimulus we try to apply.

Trap Bar Supramaximal Lowering

Trap bar lowering is probably the simplest method of delivering supramaximal efforts with minimal fuss in most gyms, considering that a squat safety bar is not often available. Most athletes are familiar with the trap bar deadlift, and getting them to buy into this variation is simple. The caveat, however, is that you need two spotters to help initiate the exercise, and then the athlete is responsible for lowering the bar to the floor.

The movement requires the athlete to stay tall and minimize any forward lean, keeping the pattern squat dominant rather than hinge dominant to avoid stressing low-tolerance structures. The athlete must make sure they center their grip, or use straps, as any tipping of the bar with supramaximal loads will be difficult to recover.


Video 1. The athlete needs to move in a squat pattern, rather than a hinge, and center their grip or use straps to prevent tipping.

Trap Bar Supramaximal Pause

Much like the trap bar lowering, the supramaximal movement with a pause works well as a low-entry exercise.


Video 2. After two spotters lift the bar into position, the athlete drops as quickly and safely as possible and brakes at an appropriate height—at the knee or just above the floor.

Hand-Supported Squat

The hand-supported squat is also known as the Hatfield squat, a subject I wrote about previously. Adding hand support increases stabilization and eliminates some of the axial stress, allowing an athlete to provide a maximum effort through their legs.

This option eliminates many of the problems we find with conventional barbell supramaximal squats or with athletes who are not confident in a split stance. The handles allow the athlete to keep a good position and assist themselves on the concentric portion of the lift. It generally requires one less spotter than barbell squats. Across our athletes, we’ve found the maximum for hand-supported squats is about 25% greater than a conventional squat maximum.


Video 3. By holding on to handles, an athlete can maintain a good position while assisting themselves with the concentric part of the lift.

Hand-Supported Split Squat

The hand-supported split squat is the supramaximal movement I apply most regularly because it covers many sport contexts, MMA included. It has many advantages over standard split squat variations, the main one being the load. Supramaximal loading takes this to its most intensive application. For details on the set-up, I suggest reading “Supercharge Single Leg Strength with This Key Split Squat Variation”—you will need two spotters to assist on the concentric portion.


Video 4. The split stance is my preferred variation among the above exercises because it delivers powerful stressors in a semi sport-specific position. I suggest athletes have a decent level of competency with these lifts before applying supramaximal means.

Organizing the Session

Athlete status generally dictates the application of supramaximal work. I prefer a 2-day model, forgoing the 3-day model that Cal Dietz applied in his original methodology. That’s not to say I won’t employ a third day if circumstances allow. Often, I’ll apply an eccentric or isometric stimulus to only the heavy lower body exercise we’ve chosen, and keep the rest of the session at conventional loading and tempo and carefully pick and choose my other eccentric stimuli.

For example, choosing to perform eccentric neutral grip lowering and RDL work versus eccentric benching is a good use of an MMA fighter’s time, as the DOMS elicited by eccentric bench work can interfere with technical or tactical practice. Eccentric upper body work seems to lead to greater soreness than lower body soreness, which is an important consideration. But I let athlete feedback and individuation guide this process.

I generally place supramaximal work first in the session, and it’s often best paired with French contrast. The combination uses the enormous potentiation that supramaximal training brings and the benefits of training variable, rapid-lengthening velocities. It also counters one of the possible effects of intensive eccentrics, which is some concentric dampening. Alternatively, you could always pair it with necessary prehab exercises between sets.

Eccentric and isometric tempos aim to keep the exercise largely alactic <10s. The quality of repetitions dictates total time under tension, so we could do 1 rep for <10s or 2 reps for <5s each, for instance. The idea is to control hormonal response and avoid oxidative qualities that would come into play with longer durations of time under tension. Remember, the aim here is strength, not conditioning. Longer durations would spoil the intended effect of the supramaximal method. Additionally, clusters can be used to emphasize quality reps further.

The decision to employ each model is based largely on athlete readiness, but remember to expect some drop in readiness during such an intensive method. Generally, anything greater than 10% in our readiness metric (peak velocity week to week) means we’ll switch to a submaximal day. This need for plasticity has led to many templates that I apply when building an athlete’s program.

Table 3. Two Supramaximal Days a Week Program
Day 1 Day 2
Supramaximal Squat 105-110% 4 x 1,1 (cluster) <7s rep time
French Contrast
·       Jump
·       Weighted Jump
·       Assisted Jump
Supramaximal Squat 110-120% 4 x 1 <10s rep time
French Contrast
·       Jump
·       Weighted Jump
·       Assisted Jump
Push-Pull (eccentric submaximal tempo) Push-Pull (eccentric submaximal tempo)
Hinge-Hip flexion-Weaknesses (eccentric submaximal tempo) Hinge-Hip flexion-Weaknesses (eccentric submaximal tempo)

 

Table 4. One Supramaximal Day and One Submaximal Day a Week Variant
Day 1 Day 2
Supramaximal Squat 105-110% 4 x 1,1 (cluster) <7s rep time
French Contrast
·       Jump
·       Weighted Jump
·       Assisted Jump
Submaximal 90% (clusters etc.)

4 x 1,1(2) 20s between reps

Push-Pull (eccentric submaximal tempo) Push-Pull (eccentric submaximal tempo)
Hinge-Hip flexion-Weaknesses (eccentric submaximal tempo) Hinge-Hip flexion-Weaknesses (eccentric submaximal tempo)

 

A modified 3-day program is determined by athlete availability, but generally I place the extra day at the start of a week block. I’ve been influenced by the likes of Cameron Josse and ALTIS in making that first day a potentiation day, setting the athlete up for the week ahead. I generally avoid adding the middle dynamic day at 90% as outlined by Cal, as it’s just too much with a busy combined practice schedule.

Table 5. One Submaximal Day and Two Supramaximal Days a Week Variant
Day 1 Day 2 Day 3
Submaximal lift
(60-80% determined by)
Contrast Method
Extensive Jump etc.
Supramaximal Squat 105-110% 4 x 1,1 (cluster) <7s rep time
French Contrast
·       Jump
·       Weighted Jump
·       Assisted Jump
Supramaximal Squat 110-120% 4 x 1 <10s rep time
French Contrast
·       Jump
·       Weighted Jump
·       Assisted Jump
Submaximal Upper Contrast etc. Push-Pull (eccentric submaximal tempo) Push-Pull (eccentric submaximal tempo)
Hinge-Hip flexion-Weaknesses (eccentric submaximal tempo) Hinge-Hip flexion-Weaknesses (eccentric submaximal tempo)

 

Conditioning

I find that MMA fighters generally have good levels of work capacity, which comes from frequent game exposures across a number of sport contexts. That said, we can certainly add conditioning to prime the athlete at the periphery of his or her capacities. I’ll have athletes perform highly alactic work after or around supramaximal sessions in the form of heavy bag work, short sprints, and sport-based isometric holds (which are undervalued for their conditioning effect). This is to keep the congruence between lifting stimulus and conditioning stimulus to minimize the interference effect.

Table 6. Alactic Conditioning and Supramaximal Work Two Days a Week Program
Day 1 Day 2
Supramaximal Squat 105-110% Supramaximal Squat 110-120%
Alactic Conditioning <10s
Qualitative
Alactic Conditioning <7s
Qualitative

 

Longer duration training or aerobic sessions can be added around this as needed, but often I find it not useful as most MMA, jiu-jitsu, and striking training is moderate-aerobic and continuous, making it difficult to justify this type of additional work.

Letting the Athlete Lead

By applying this method, we learned that the qualities that make fighters great are the qualities that make them a sponge for compressed training approaches. Tolerance for stress, robustness, and high levels of strength beget tolerance for stress, robustness, and high levels of strength—there is a reason this athletic population is tough.

MMA Takedown
Image 2. “There is a reason this athletic population is tough.”

Because of the intensiveness, I ensure an athlete-led approach that has communication as its underpinning. I always ask athletes how their training has been due to how variable it can be. I also chase them on recovery methods because of the pervasiveness of DOMS during the program. A gentle nudge to go sauna or perform a movement session can make the difference in readiness for the week ahead.

Closing Thoughts

This article explores the method as I apply it. Hopefully you can take something from it, even if it’s just a renewed consideration of how much stress we can apply beyond minimum effective doses to optimal effective doses. The supramaximal compressed method is not the only means available, as it lacks the skill acquisition component standard submaximal lifting has through more prolonged exposure. This is why I suggest having a few years of training accumulation, or at least moving loads more than twice bodyweight concentrically, on any of the supramaximal options presented.

Considering the short windows of opportunity MMA fighters have, it can be challenging to expose them to enough intensive strength methods throughout a training year. Compressed methods seemed like a gamble initially, due to the unknown of what an athlete can tolerate. But I learned to appreciate the method as a stressor we can apply like any other. Approached pragmatically—and with judicious application—it can be a powerful driver for change.

For further exploration of the underlying physiology of the supramaximal eccentric training and its positives and drawbacks, watch this video from the 2015 NSCA National Conference by Dietmar Schmidtbleicher.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF


References

Gavin L. Moir, et al. “The Development of a Repetition-Load Scheme for the Eccentric-Only Bench Press Exercise.” Journal of Human Kinetics, 2013; 38: 23-31.

Yessis. “Are Eccentrics (Negatives) For You?“SportLab: Building A Better Athlete.

Suchomel, T., et al. “The Importance of Muscular Strength: Training Considerations.” Sports Medicine, 2018.

Mike, J., et al. “How to Incorporate Eccentric Training Into a Resistance Training Program.” Strength and Conditioning Journal, 2015; 37(1): 5-17.

Jamurtas, A.Z., et al. “Comparison between legand arm eccentricexercises of the same relative intensity on indices of muscle damage.” European Journal of Applied Physiology, 2005; 95(2-3): 179-185.

Hyldahl, R.D., et al. “Lengthening our perspective: morphological, cellular, and molecular responses to eccentric exercise.” Muscle & Nerve, 2014; 49(2): 155-170.

IMU Device

A Buyer’s Guide to IMU Sport Sensor Devices for Professionals

Buyer's Guide / ByChristopher Glaeser



IMU Device

The microsensor market, specifically motion sensors found in many devices in sports tracking, exploded over the past few years. Unfortunately, due to the low cost of the sensors, the market has been overrun by gadgets instead of precision instruments. The velocity-based training market is now saturated with low-cost sensors and, due to the availability of the technology, the sensors are usually included in body tracking products such as GPS systems and similar wearable technologies.

Inertial motion units, or IMUs, are sensors that collect motion data that can be used in calculating estimates of work, speed, and even movement angles. IMUs are only as useful as the methodology of the users and the algorithms developed by the companies that provide sport systems. Simple accelerometers can be found in sleep trackers and even in the smartphones we use every day, and while they are acceptable tools for estimating athlete motion, they are far from perfect. In this guide, we provide a serious look at IMU technology and applications, and review example options that are excellent for sports training and rehabilitation providers.

What Is an Inertial Measurement Unit?

An IMU is typically a combination of sensors that assist in collecting the motion of a body or sporting implement, such as a ball. IMUs are integrated with sports training equipment because they are small and collect multiple types of data, including acceleration, orientation in time and space, and direction. IMUs are also inexpensive and don’t require much energy to collect and transmit data, so they are ideal solutions for sports training and competition.

IMUs collect many types of data, including acceleration, orientation in time & space, and direction. Share on X

An IMU system has three primary sensors: an accelerometer, a magnetometer, and gyroscope. All three have individual value, but together they form a superb measurement solution for general sporting action. The amount of accuracy and precision is dependent on the calculations of algorithms when engineered, so the development of a system of checks and balances is necessary.

Accelerometer: An accelerometer is exactly what it sounds like—it detects changes in speed and is invaluable for general body motions. Without other sensors though, it’s very limited and can’t give context to what is occurring.

Gyroscope: A gyroscope helps determine the orientation of the sensor, determining how it is moving in three dimensions. Multiple sensors connected together can model the motion of an entire body if carefully designed.

Magnetometer: Assisting in direction orientation, a magnetometer is useful in calibration and directing the data to the right position. Magnetometers are not as important as the other two sensors, but they do add another layer of data that is appropriate for outdoor sports.

IMU Sensor Board
Image 1. Some sensors are the size of a fingernail, so a circuit board with IMUs can be quite small. As technology evolves, expect the size of the sensor to decrease even further and the quality of data to improve.


The expectations beyond the sensor side of an IMU is that the system has battery and wireless components, as well as the necessary parts that allow for functionalities such as charging the device and possible indicator lights. More and more sports technology equipment includes other components unrelated to movement because they add context, but they are not IMU sensors.

What Applications Are Appropriate for IMU Sensors?

The versatility of IMUs make them prime candidates for use as sports technology solutions, especially because of their size and ability to collect data continuously. While inexpensive, producing a full turnkey solution requires a lot of development, especially on the algorithm and software side. Most of the IMU solutions solve small motion needs, but some companies use IMUs for very demanding purposes. For example, a cable television remote may have an IMU to simply detect if it’s picked up or placed down to illuminate the buttons. More advanced applications use IMUs, such as monitoring jet engines, while many simple devices in sports training help coaches detect jumping.

Their size and ability to collect data continuously make IMUs versatile sports technology solutions. Share on X

Some barbell velocity and performance products use IMUs to detect changes in speed or orientation of path of the stroke. While IMUs are great for shifts in acceleration, they are not ideal for slow motions such as isometric activities. Although calculations can improve, one issue of note is that IMUs favor simple actions. Drift, or when the data loses its accuracy over time, is a problem that requires refinement in algorithm and firmware modification. Most wearable products on the market now use IMUs to collect simple activity data, like walking or running, but they are more powerful than pedometers. A modern IMU can collect more sensitive data and, if used creatively, can acquire information such as hand gestures and even small deviations in body posture.

There is a growing interest in IMU use in collision and combat sports, as well as military activities. High-speed collisions create accelerations to the head and torso, thus making IMUs appropriate for impact detection. Based on the research, most of the calculations and algorithms available are valid and reliable for detecting tackles, scrums, and head impacts with helmet-based sensors. While calculations from IMUs are refined, the individual state of brain, health, and neck strength can determine the severity of a blow, so other factors outside the forces delivered to the body should be considered.

How IMUs Calculate from Different Locations of the Body

The location of an IMU sensor is of high importance for several reasons, and the first is comfort. For example, some sports collisions are common and a normal part of the game, and a sensor can be damaged or cause pain during use if it impacts the body during a hit or fall. IMU placement is also important for validity and accuracy requirements. Placing a sensor near the center of mass of an athlete does approximate a more true measure, but comfort and ergonomics have made the upper back a prime location for the athlete tracking market. Other sites, such as the foot and wrist, do help coaches and athletes see relationships between the ground and throwing or lifting, but those are still indirect estimates of what is happening in sporting actions.

IMU placement is important for athlete comfort, as well as validity and accuracy requirements. Share on X

Several rounds of revisions are necessary to create a robust algorithm, such as planned activities and exercises. Depending on the location on the body, the data can be useful and revealing, or simply inappropriate. Algorithms are only as smart as the engineering of where the sensor is placed and how well that location interacts with the body action. Placing several sensors on the body does increase the likelihood that the data will be valid, but more information doesn’t help if the integrity of the data isn’t solid with one location.

You should not view IMUs as interchangeable with motion capture, but they are often used as a proxy to camera systems because they are clinical grade and useful for basic activities. Most of the IMU systems that perform motion capture for very basic applications are considered clinical tools. Clinical-grade tools are accurate enough to perform very low level tasks, but they don’t provide the rich precision of research-grade options. Usually, companies tag each sensor with a specific location on the body, as inferred information enables the software to calculate more intelligently. Additionally, a calibration or orientation period is typically needed before using multiple IMU systems.

Features and Functions of Hardware and Software

As stated earlier, IMU hardware is normally wearable, and that means it must be water-resistant, small, wireless, and battery-powered, and store data if needed. What makes IMU sensors special is that they can be programmed and designed to solve many different problems with measuring athlete motion. Some IMU sensors attach to the athlete, while some attach to equipment. Hardware is the most important factor with IMU technology because if an athlete will not wear it or finds the user experience unsatisfactory, software features and high data accuracy are pointless benefits.

Wireless data from IMU sensors is now continuous and live, and the expectation is that the process will provide immediate feedback. Low-energy Bluetooth is the standard because the data volume is reasonable. One main difference between IMU sensors is that modern options can be used with smart devices. While a full IMU motion capture system still uses software on a computer, many small devices can connect wirelessly to a tablet or smartphone. Some systems do connect to traditional setups, such as laptop and desktop computers, but most of those are for research or enterprise systems.

A strong point with IMU sensors is the sheer volume of data they collect. Share on X

One of the strong points of IMU sensors is the sheer volume of data they collect, so an interest in machine learning and other forms of artificial intelligence is growing. Most software programs for sport IMUs are web applications that manage team data, and companies may provide an API that connects to other platforms, such as athlete management systems.

Example Solutions for Coaches and Medical Professionals

The market has over a hundred companies that provide IMU products to fitness enthusiasts and researchers, and the turnover of products is very rapid. We provide the list of companies and products below to give you insight into what is available. The guidelines above are timeless advice that will enable you to make an informed choice for years.

Motus

This U.S. company specializes in baseball tracking, but technically its product can be used for other sports and body motions. The Motus band tracks arm motion and has specific metrics that inform the user of fatigue, abnormal mechanics, and possible compensation. Due to the frequency of elbow and shoulder injuries in pitchers, the Motus has potential with tracking, but it’s still a long shot for injury reduction due to the constraints of measuring entire body motion and actual forces. An IMU doesn’t have enough sensitivity to account for small arthrokinetic changes to the elbow and shoulder that occur in live motion throwing. There is currently not enough research available to determine if the sensor can actually detect those responses and whether they are valid to use as tracking metrics anyway.

Runscribe

Most commercially available running sensors are designed for cadence only, but Runscribe uses their metrics to evaluate the entire foot strike. Currently, the product is more prosumer, meaning it caters to high-end users and some coaches in the endurance market, but it’s not a product that can support sprinting or other motions unless you export the files into a .csv reader. The wearable sensor is mounted on the rear of the sneaker or top of the laces, making it user-friendly and practical for different sports. Endurance runners, and even milers and other middle distance athletes, can benefit from the system. Countless systems are available on the waist for stride analysis, but actually tagging the right and left leg reduces error and calibration issues. 

MuscleLab

Ergotest provides an integrated and synchronized family of measurement tools that are designed for coaches, researchers, therapists, and sport scientists. The MuscleLab line of products is excellent for applied settings, but valid for performing scientific investigations. The IMU sensor is mainly a gait analysis tool, but coaches can integrate it with jump training and other modalities. The IMUs are location-agnostic, meaning the data is designed to be interpreted by an expert and is not a motion capture system. The IMUs can be integrated with force plates, load cells, electromyography, contact grids, and lasers. Ergotest’s founder is one of the pioneers in velocity-based training, and produced a system in the 1990s before the popularity we see today. The company is based in Norway, and has partnerships worldwide.

Jawku

This U.S. company offers an electronic timing system that is part smartphone camera-based and part accelerometer-assisted. Jawku recognizes first movement using the accelerometer set to detect real initiation, and the app detects movement of the finish of the run. Unfortunately, the product can’t get instantaneous speed or even splits, but due to the price point it’s likely serviceable by some coaches. As of mid 2018, no validation study is available, but the engineering and hardware side does have the potential to provide a rather reliable product. In addition to the clever use of the smartphone, the product is technically a wearable, as the system is worn on the wrist. Teams and large facilities should think about the limited use in group settings, as wearables are cumbersome when doing combines or testing large groups.

VERT

VERT is more of a jump tracking product than a jump testing system, as it estimates work rate with jumping. The system is designed to be worn around the waist, and is popular with volleyball teams. Basketball, being a higher revenue sport in general, has used wearable GPS or tracking systems for jump detection, but the systems are limited for jump testing. Over the years, the system was marketing to the consumer side, but some teams have adopted it as a way to move towards a more automated approach to workload for jumping athletes. A lot of traction started in 2012 when the momentum of the product hit a commercial tipping point. As of today, some companies are attempting to follow suit with a similar product.

Assess2Perform

This U.S. company produces three products that address the ball, body, and barbell tracking markets. With more than 10 years of experience in the medical and performance spaces, the founder created a complete line of solutions that empower coaches, rehabilitation specialists, and even researchers. The ballistic ball was validated for explosive power recently in the scientific literature, and the company’s other products, which include Bar Sensei, continue to sell well internationally. The main goal of Assess2Perform is to provide a practical solution for all levels of sport and fitness, and support those in the wellness and rehabilitation market.

Xsens

Based in the Netherlands but with offices internationally, Xsens is an enterprise solution for large industries and sports. The Xsens is a complete turnkey solution, and is open for experimentation-type activities including research. The company is gaining traction in the sports market, and has tracking tools available for coordinate data. The company provides 3-D motion capture and is available for research, manufacturing, rehabilitation, and worker safety. While the teams using Xsens are currently unknown, the product is gaining momentum with awareness in the North American market.

TritonWear

The only aquatic product listed in this buyer’s guide is made in Canada, and is focused on the sport of swimming. Each TritonWear sensor is designed to detect surges or acceleration in the water, and those metrics are helpful for seeing overall patterns in distance per stroke and similar indices specific to swimming. TritonWear is an enterprise product, but individual purchases can be made for those wanting to test and monitor individual athletes. The data is sophisticated enough for deep analysis, as it can detect small motions such as breathing pattern and time underwater. In addition to the metrics it collects, the solution is useful for building workouts and race analysis.

IMeasureU

This New Zealand company has traction with a few teams and was acquired by Vicon in mid 2017. IMeasureU has its U.S. headquarters in Denver, Colorado, and touts the Philadelphia 76ers as one of its clients. In addition to the NBA, over the last two years several pro teams have tried the system, which requires the user to wear it around their ankle. The algorithm is a simple strain calculation that detects step impact, and the data is sent to a smart device using Bluetooth. The product can be used for other means, but so far most of the development is for impact load tracking for sports like basketball and running-based field sports.

dorsaVi

This international company offers two sensors, an EMG option and an IMU wearable. dorsaVi’s strategy is to hit all levels of business-to-business solutions, including teams and colleges. Most of the IMU systems are valid enough for simple work rate or activity detection, but they are limited because they are IMU-based. So, while they are marketed as motion capture, they are clinical grade for applied settings and not as effective as camera-based solutions. The company has a strong presence in Europe, Australia, Asia, and North America. Over the last few years, the company demonstrated strong management of an array of different applications, including sports performance.

Plantiga

Plantiga provides a movement analytics platform supported by sensor-equipped insoles. They quantify the biomechanics of sport-specific movements by measuring the accelerations of each foot strike during running, jumping, and changes of direction. The company’s insoles slot into existing athletic footwear and capture performance and asymmetry data in training and competition. Cloud-based algorithms then translate the data into metrics and insights which users interact with on Plantiga’s web and mobile apps. The solution helps trainers, physical therapists, and coaches screen athletes at intake and identify trainable deficits in order to prevent injuries, guide return-to-sport, and improve performance. Headquartered in Vancouver, Canada, Plantiga’s offering has garnered interest from the four major North American sports leagues and other pro sport organizations, such as the United States Tennis Association.

The market will likely see an increase in IMU options, and a decrease in their cost and size. Share on X

The future of IMU markets is unknown, but what is likely to happen is an increase in options and decrease in the size and cost of the technology. In addition to hardware companies, we will likely see the rise and fall of different software players and possibly new opportunities from innovation. While IMUs will always be seen as indirect measures of kinetic and kinematic output, their usefulness and reliability is at a standard where they are accepted as appropriate sport science tools for data collection.

Adopting IMU Solutions for Your Organization or Needs

Highly trained sports professionals can use IMU tools in conjunction with other systems to determine the context of the data they are collecting with sensors or know how to work around the limitations of the data. The usefulness of IMU sensors is the opportunity they provide to have specialized data assist with small needs, and extensive options like motion capture are possible with much larger budgets. IMU sensors can create a network, or add accuracy and validity to other sensors, but in isolation they can only estimate most measurements. Scientific validation from actual peer review research is recommended before trusting the data, and when necessary, new systems can be vetted internally with accepted gold standards.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF



Football Conditioning

The Best Conditioning Test You’ve Never Heard Of

Blog| ByCarmen Pata

Football Conditioning

In my search for a better conditioning test, I found one that is too good to keep to myself. The athletes I work with begrudgingly know this test as 220s because that’s the distance I ask them to sprint each rep. Before I get into the nitty-gritty about this test, I’ll pass along why I decided to use it.

Despite what my athletes might tell you, I did not introduce the 220s as some form of sadistic enjoyment—rather, I’ve never found a conditioning test that gave me the information I was looking for. Yes, the foundation of every conditioning test comes down to a way to access a person’s fitness level. I don’t know about you, but no sport coach I work with understands what it means to make it to level 6.7 on the Pacer test. Is this a good score or bad score?  How does that 6.7 relate to the way we should use an athlete during games?

Let’s also not forget about the mental side of most conditioning tests. In the classic Beep or Pacer tests, the athlete can essentially quit the test whenever they choose by failing to cover the distance in the decreased time. I’m not a fan of telling people simply to go as long as they can. I looked at the 300-yard shuttle as a decent alternative, since there is a change of direction component, but again it fell short for me. After all, is taking two attempts five minutes apart really that good a measure of an athlete’s conditioning level?

A Testing Model

After trying all sorts of drills and not getting much helpful information from them, I put a list together of what a conditioning test must have:

  1. The test has to have a definitive end. No more go until you can’t.
  2. The test has to be appropriate for stop and go sports. No more aerobic-based tests.
  3. The test has to be something groups of 60+ people can do at the same time.
  4. The test has to be taxing enough to test fitness levels but realistic for people to complete fully.
  5. The test has to provide multiple useful data sets.
  6. The test has to provide data that sports coaches can look at and easily “get it” without a lengthy explanation.

It took some time researching journals, talking with other strength and conditioning coaches, and listening to sport coaches about what was important to them, and the following is what I came up with.

We had a football field available and lined, so that was the logical place to hold the test. I live in Northern Wisconsin, so I had to concede that I would not be able to test athletes from November to March due to winter weather. But the plus side of using a football field meant I had a giant stopwatch we could use.

If the athletes start on the north goal line, sprint to the south end line, move around a cone, and sprint back, they would cover 220 yards. At three feet per yard, 220 yards equals 660 feet, which happens to be ⅛ of a mile. If we did eight reps, that would be one mile, so it was an easy decision to end the test with eight attempts.

Since I was not interested in information about aerobic capacity—and testing the ATP-PC energy system is easier to do in the weight room and lab—all that remained was the glycolytic energy system and using a 1:3 work-to-rest ratio for the test. Lastly, the information collected would look at fatigue resistance, the maximum aerobic speed (ok, ok, I know it’s not quite the correct term, but it makes sense to sports coaches), and we would have a quantifiable data set showing which athletes push themselves and which ones don’t.

It seemed like we might have a winning idea. After a handful of experiments with some football players—to whom I’m very grateful for volunteering to try this out—we made some adjustments, and I finally had a tool that did everything that I wanted it to do.

Remember we’re talking about a conditioning test for stop and go sports which will stress the glycolytic energy system, which means that the athletes will be uncomfortable for the duration of the test and sometime afterward. I talked with the athletic trainers at my school, explained to them the point and purpose of the 220s, and asked for their help during testing. It’s been great having the staff on the field, providing coverage and supporting the athletes. Here is my last suggestion if this is something you want to try: remind the athletes to bring their inhalers if they have asthma, water bottles, and go to the bathroom beforehand.

How to Administer the 220s

After an active warm-up, the athletes get into a line of four (1:3 work-to-rest ratio) on a football field’s goal line. On the opposite side, place a cone on the end line (the line is at the back of the end zone, 110 yards away). The first group will start on the coach’s command following a countdown as someone starts the game clock counting up from zero. All other runs will use the game clock at the top of the new minute as the start signal.

The athletes have to run as fast as they can, get around the cone, and return to the start line. When an athlete breaks the plane of the goal line returning from their 220-yard run, a coach records their time to the nearest second. Continue for eight reps.


Video 1. In this video, the first group of athletes run one attempt of the 220s conditioning test.

Table 1. This chart shows the recorded times for three athletes performing the 220s conditioning test.
Rep 1 Rep 2 Rep 3 Rep 4 Rep 5 Rep 6 Rep 7 Rep 8 Total Time MAS Fatigue
30 31 32 33 34 36 35 35 266 13.5 mph 9.8%
36 38 42 44 45 50 51 54 360 10.0 mph 18.4%
34 34 34 34 34 34 34 30 268 13.4 mph 10.5%

Interpreting the Data

In the first example, the athlete has a relatively fast Max Aerobic Speed (MAS). As the test continues, they are getting fatigued and their times are getting slower, which is exactly what I expect. I use this drop in speed to calculate their fatigue resistance: 100 X (1-(their best rep X 8)/sum of all reps). In the first example, this is 100 X (1-(30*8)/266) = 9.8%. The lower the percent drop, the more that athlete can handle doing repeated high-intensity bouts, which means they can stay in the game longer without needing a substitution for rest. On the other hand, the greater the fatigue score, the more an athlete will need substitutions to enhance their recovery.

The greater the fatigue score, the more an athlete will need substitutions to enhance recovery, says @CarmenPata. Share on X

This is how I interpret the second athlete’s results. If this were the first test of the season, I’d say the athlete didn’t do any running before the test. But since these results were from the end of an eight-week off-season training program, the situation is different. Now it’s a matter of having a conversation with the head coach about the substitution strategy with this athlete and adjusting their workout to keep their speed and try to improve their glycolytic capacity.

We can adjust an athlete's workout to keep their speed & try to improve their #glycolytic capacity, says @CarmenPata. Share on X

The third example is the type of player that makes me mad as a coach. Either they don’t understand the test, they don’t care about it, or they’re simply lazy. The third athlete just paced the test. While historically the last rep is faster than the 7threp for most people, it should never be the fastest if the athlete gave great effort during the entire test.

If you believe that the culture of the team determines the success of the season and that culture starts in the weight room, then the third person is not someone I’d want around the rest of the team. Assuming the head coach still wants this person with the team, I would at least surround that person with strong-willed teammates to push, encourage, and demand great effort. The positive thing about finding this out before the first game is that you know the athlete’s mindset and can develop a plan to get past it.

Final Thoughts

As you can see, the 220s test is a powerful tool. For strength coaches, it gives us a way to look at the relative fitness or conditioning level of our athletes. And we can test large groups at once (my current record is 145 football players).

Since we know total time and distance, we can generate feet per second, which gives us a way to personalize a conditioning program. For example, the first person ran 5280 feet in 266 seconds, which is 19.8 feet per second. In 15 seconds, we can expect the first person to cover 297 feet, the second person to cover 220 feet, and the third to cover 295 feet. Set up some cones and have them run to the cone, let them rest for 45 seconds, and then start rep two to bring them back to the start line.

The last, and one of the most important, things the 220 gives is is evidence to predict how we can use each player in competitions. For all of these reasons and more, the 220s has become an important tool in my testing battery and can become one for you as well.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF



Physiotherapy

A Collaborative Model for Managing Adaptations in Recovery

Blog| ByCody Roberts

Physiotherapy

Training, development, and, ultimately, performance are balancing acts and processes that must be collaboratively managed when a group of practitioners is involved with the shared goal of helping the athlete be as successful as possible. Everyone involved—the sport coach, strength coach, athletic trainer, massage therapist, chiropractor, etc.—has the intention of bringing value to the athlete. All practitioners have a set of skills and treatments that they are looking to prescribe to influence this developmental process in a positive way. The implementation of treatment and training is a stimulus, and practitioners have developed their “systems” of care, operating through principles and progressions.

Drone View at 30,000 Feet

Most important to this process of adaptation are the shared principles and collaborative approach, or guiding and managing an athlete through the process of dose response and improvement. This collaboration takes time, interaction, and productive communication to be effective. It is selfish, and unfair to the athlete, for an individual practitioner to feel like they are the sole individual responsible for being the puppeteer in the progression of training and developing an athlete. The athletes themselves play a huge part in the adaptive process, and we must encourage and educate each one with lifestyle skills that provide the necessary tools and environment to thrive through the stresses of training.

Practitioners aim to recognize the countless factors that influence an athlete, and exert some control over the amazing psycho-neuro-endo-physiological chaos that ensues. At the end of the day, it comes down to the athlete—their self-determination is what ultimately allows everything to come to fruition. All the while, there is no doubt that each practitioner involved helps the framework and structure of a “care team” to form, separating the “program” into more manageable segments and placing experts in each area.

Boring Background – Science, Adaptation, Periodization, and Purpose

“Stress is a state created by the specific syndrome that consists of all non-specifically induced changes within a biological system.” – Hans Selye

Hans Selye looked at the non-specific endocrine responses of tissues exposed to a variety of physiological and psychological stresses, and developed a framework for the adaptation windows and recovery time based upon intensity, duration, frequency, mode, volume, and specificity1. There is a time and place for all types of training and treatment (some of which are never and nowhere), but when interventions are applied appropriately—based upon timing (readiness vs. preparedness) and considering volume, intensity, mode, etc. (load)—individuals respond over time and some sort of adaptation or rejection/exhaustion occurs. This is where the theories of periodization come in as well; where each practitioner looks at the calendar (macrocycle) and breaks the year into segments based upon competition and blocks of training.

Periodization is a very real thing, and is in place to provide a framework and model aimed at maximizing and cultivating the development of the athlete through the coordination of stress and recovery. Practitioners look to maximize the effects of the stress/stimulus dosed to the body, and the resilient or sometimes fragile organisms that we work with challenge us each individually throughout the days, weeks, and months of training. Rather than living in the dark ages of “no pain, no gain,” we should aim to operate with the mindset of “minimize pain, and maximize gain.”

Instead of ‘no pain, no gain,’ we should aim for the mindset of ‘minimize pain, and maximize gain,’says @Cody__Roberts. Share on X

As strength and conditioning coaches, we look to develop physical qualities and resiliency to enable an athlete to perform their skill at the highest level, improving the capacity to work and allowing technical mastery to flourish within the given sport or discipline. This sounds all well and good, but truly we are fatigue managers, playing a small part in the adaptive process. We time the prescription of treatment and training in the hope of getting an optimal response, in terms of both creating fatigue and aiding in recovery.

Helping take athletes from “good” to “GREAT” centers on adaptation to the training and to the environment the athlete lives and operates within. This is where the psycho-neuro-endo-physiological chaos ensues, as all systems respond in a hopeful unison to allow learning, growth, and development within the athlete. Ultimately, the process should enable the athlete to compete at a higher level both psychologically and physiologically, having become a more robust and resilient organism attuned to a variety of tasks and stressors throughout their training history.

Back on the Ground – The Process and Participation

To truly “maximize” this “gain,” we must be collaborative with the other practitioners involved in the process1 because the human body can battle through countless stressors, continuing an upward trend of development, fighting fatigue, and coming back bigger, faster, and stronger than before. Just as a child learns the skills of mathematics through problem-solving, practice, and trial and error, an athlete’s body learns through problem-solving as well—and both the child and the athlete come out the other side more resourceful and productive within their environment2.

The process of adaptation is difficult, stressful, and damaging. As practitioners, we “play with fire” at times, in that we hold an athlete’s dreams, aspirations, and sometimes livelihood in our hands with our dosing of training or treatment. We cause trauma to connective tissues and joints, program the nervous system to function more optimally, and develop motor patterns and skills that allow for increased mastery and capacity. It can be a long and hard road, and many athletes are fortunate to have a care team of individuals at their disposal. But just as a grade school teacher should not give a student an answer, practitioners in the performance world cannot be too quick to aid in the recovery process, as the athlete’s body works to reverse fatigue and breakdown, returning stronger than before.

Time can heal most “wounds,” and if training load is appropriate, an athlete can recover between bouts and truly benefit from every hormetic dose of training/treatment that they are exposed to. But this time allotted must be adequate for the training to be truly preparatory and for the athlete’s body to learn to respond, grow, and flourish. The necessary time is based upon the variables of dosage (intensity, duration, frequency, mode, etc.), and the key to all of this lies in the ability for all practitioners to work in unison with one another, pushing or pulling the athlete in the same direction. Hence, the time and place of training, as well as the loading. When we try to pull an athlete in opposite directions or push too much, the load exceeds capacity too quickly and setbacks happen.

If You Read Nothing Else…

Collaboration and communication are of paramount importance to the effective management of this process. Practitioners need to have a collective philosophy so that when there is a call to action and an athlete is in the care of one of the care team members, they have confidence in how to act and what to do.

During the offseason, coaches shouldn’t intervene with the body’s inflammatory response to training, says @Cody__Roberts. Share on X

For example, if an athlete is in an off-season training block or “preparatory” period, is the goal to provide “artificial” or therapeutic support to the athlete’s recovery? Should you provide aid for the physiological response (or the answer to the math equation that the grade-schooler is trying to decipher)? I would argue that, during this period, practitioners should not intervene with the inflammatory response to training, but rather allow the lifestyle and environment of that athlete, as well as the biological process, to happen naturally.

Hormesis

In situations such as those mentioned above, recovery means and modalities should take a back seat, because just as an athlete adapts to training stimulus, there is an adaptation or “law of diminishing returns” associated with recovery modalities. The adage or excuse that the athlete needs to “recover more” may simply mean that they need more time to allow readiness to return to a point where the training can be received and an adaptive process can occur. Otherwise, the cost of adaptation becomes too high, and instead of a hormetic dose of training, the training becomes poisonous and the body becomes resistant to the process in one of two ways:

  • Physically (illness or injury)
  • Psychologically (unmotivated or monotonous)

This should be understood and communicated by all parties: the coach prescribing the stress or stimulus, as well as the health care professionals working to keep the athlete feeling and performing their best. This can be a tough role to assume for any practitioner, especially one looking to serve and care for the athlete while caught in the trap of a “more is better” mentality.

When to ‘Recover More’

There will come a time of condensed competition, or potentially an intensive training camp, where recovery modalities (massage, hydrotherapy, EMS, cryotherapy, compression, etc.) will be necessary to help improve the recovery time of an athlete, and basically press “fast forward” on the potential physical and psychological effects of the training. Based on research and experience, practitioners are having a psychological impact on athletes with treatments of massage, compression, hydrotherapy, etc., as opposed to true physiological improvements of readiness (i.e., changes in countermovement jump performance, HRV, DC potential, or TMG readings)3.

That said, some can and do argue that psychological impact is physiological, and the brain controls all. So, regardless of true physical readiness, if the athlete feels psychologically ready to train or compete, then there is potential benefit regardless of where the athlete is in relation to fitness and fatigue. This is where the art and science of coaching come into play, and a coach must not become overly dependent on these psychologically beneficial recovery modalities. Instead, allow adequate time for healing and learning the biological and neuroendocrine response (adaptation).

At the end of the day, time is our most precious commodity and overwhelming the athlete with more time demands can be stressful and counterproductive. Remember that athletes are human beings, and the balance that we, as practitioners, work with is psycho-physiological. Consider:

  • Confidence
  • Emotion
  • Opinion

Each are at play throughout the process, and the art of selling the program as well as developing trust are all too important to the effectiveness of the adaptive process.

Time, Place, and Tough Love

We’ve all heard and hopefully live by the adage of “training smarter, not harder.” Recognizing the training block and period of time an athlete is currently in, be effective and efficient with training prescription, which potentially means doing less. Maybe not less overall, as volume is a very important driver to adaptation, but potentially less intensity, less frequency, etc. Training should not be a test of how much the body can handle, but rather a process of learning and teaching the body, molding it as a teacher would a student, developing necessary skills and abilities to perform well when “test day” (game day) comes around.

An effective teacher does not constantly test their students’ abilities, but rather approaches them with patience, understanding, and sometimes a little tough love. The same can be said for the practitioners who must work together to coordinate the training plan, but then respond to the programming as the athlete does, modifying and adjusting based upon the psycho-physiological readiness of the athlete. A teacher continuing to provide assistance or, in this case, a practitioner continuing to prescribe “recovery methods,” is in a way similar to continuing to ride a bike with training wheels on: constantly being assisted through the process.

Research vs. Reality

Is there a law of diminishing returns to these various recovery modalities? In many studies that show the efficacy of treatments such as hydrotherapy and massage, the treatments are only performed in a small window of time, and we do not get the complete context of the effects after a year’s worth of massage or hydrotherapy treatments. Rather, we often get just the average of a four- to eight-week study.

Training is treatment; treatment is training, says @Cody__Roberts. Share on X

Do the effects of massage in aiding the recovery/adaptation process have a window of efficacy? I would argue that, just as it is with training, there are windows of adaptation as it relates to recovery modalities. Recovery modalities need to be:

  • Planned
  • Periodized
  • Dosed appropriately

To maximize their effectiveness, these modalities need to be done at the optimal time and place. Sound familiar? Training is treatment; treatment is training.

Key Takeaways

This understanding gives the practitioners time to be most effective, and allows for their role and purpose to be defined and guided by principles and a shared philosophy. The athletic trainer knows when to intervene and dose treatment appropriately, and what message to relay to the sport or strength coach. There are times when the massage therapist is highly involved, and times when we will not even use this “tool in the toolbox.”

This makes the strength coach and sport coach accountable as well, to where they know when to back off and when to push through based on the primary goals of the training block. Are we focused on general preparation, where volume is our primary focus and we can sacrifice intensity? Or are we concerned with achieving a certain intensity and not worried about volume or frequency?

There is context to all specific training prescriptions, but the generality in this situation is that we must be patient and we must work together. Trust and confidence in the abilities and prescription come over time, and with productive communication. This is where we are able to go “next level” with effective monitoring strategies that enable us to make daily/weekly modifications, developing a sense about the adaptive process, as well as objectivity.

But as always, it’s time and place, and we can’t put “the cart before the horse.” Teamwork and trust are the foundations to build upon, and periodization comes in the form of sound training prescription and principles. This is when an athlete can flourish, and what seemed like a slow, arduous process of adaptation now becomes a steady upward trend where everything moves and progresses in the right direction. This is when it becomes fun and easy, and rolls on all cylinders through athlete education and buy-in.

Summary and Solutions

There are countless stressors throughout life, and the daily pursuit of development and adaptation is the goal within sport performance. The thing to remember is that adaptation takes time, and sometimes that means we cannot check all the boxes of training stimulus throughout the week (sprinting, jumping, squatting, etc.). If we take a step back and reflect on our objective, and we collaborate on our training to all push/pull in the same direction, we will likely make much better progress than if we push/pull against one another. Sometimes, we may need to do less:

  • Less recovery
  • Less intensity
  • Less volume
  • Lower frequency, etc.

With the shared understanding that less is truly more effective, we cultivate an environment and promote a process to thrive instead of survive. This allows the body to learn to recover on its own, to problem solve, and be resourceful, without leaning on the crutches of effective/ineffective recovery strategies.

The most effective involvement is collaborative, says @Cody__Roberts. Share on X

As coaches, we can connect with one another, collaborate, and work together to educate athletes on an optimal lifestyle. Teaching athletes allows them to fail and learn through the process, because it is not what we do that matters, but more importantly, how the athletes grow and perform. We simply want our involvement to be effective, and the most effective involvement is collaborative.

I have personally seen these conversations unfold. The purpose and collaboration in planning, programming, and reacting to the athlete allows the lens to become clearer. These interactions with colleagues and athletes become enjoyable and flexible. We are allowed to truly listen and connect instead of dictating and directing. Just as with adaptation, it takes time, patience, and a little give and take from everyone and everything: Sometimes when you do less, you’re really doing more.

References

  1. Hoover, DL, VanWye, WR, and Judge, LW. “Periodization and physical therapy: Bridging the gap between training and rehabilitation.” Physical Therapy in Sport, 2016;18:1-20. doi:10.1016/j.ptsp.2015.08.003
  2. Brown, Peter C. Make It Stick: The Science of Successful Learning. Belknap Harvard, 2018.
  3. Barnett, Anthony. “Using Recovery Modalities between Training Sessions in Elite Athletes.” Sports Medicine, 2006;36(9):781-796. doi:10.2165/00007256-200636090-00005

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Strength Training

Modern Pillars of Strength, Assessment, and Training with Dr. Matt Jordan

Freelap Friday Five| ByDr. Matt Jordan

Strength Training

Dr. Matt Jordan is a strength and conditioning coach/performance consultant for elite athletes with six Olympic cycles of experience. He holds a Master of Science in Exercise and Neuromuscular Physiology, and a PhD in Medical Science from the University of Calgary. Matt has consulted with more than 30 Olympic and World Championship medalists and provides expertise to high performance organizations in the NHL, NBA, NFL, and military. He is currently the Director of Sport Science (Strength & Power/Mountain Sports) at the Canadian Sport Institute Calgary (CSIC) and leads the Sport Science/Sport Medicine program for Alpine Canada. Matt provides science-based education courses for strength, fitness, and performance coaches of all levels through his website.

Freelap USA: Periodization (defined as planned, sequential overload with phases complementary to the next), in general, has taken significant criticism in the last decade. What are some positives and negatives to this model, and where do you see it heading?

Matt Jordan: Yes, for sure, it seems like the concept of “periodization theory” has taken a bit of a beating recently. I have to say, I have also thought critically about periodization over my career.

I remember my first introduction to periodization theory in my undergraduate degree, reading textbooks authored by former Eastern European sport scientists. I recall all sorts of reaction curves or performance responses to various sequences of training loads, and the planned/purposeful manipulation of volume, intensity, and density of the training stimulus to optimize performance. I learned about the various organizational structures of training load and training cycles, and the concept that training should progress from general means through to more specific means leading into a competition phase.

Underpinning this notion was that the planned manipulation of training load resulted in the attainment of a peak level of performance at a desired and specified time point in the future. As a young coach, all of this made sense to me. There was just one problem—where was the data to support these claims? I say this because most of the figures looked like hand-drawn sketches rather than being empirically based.

I also ran into a paper titled “The End of Periodization” by Yuri Verkhoshansky in New Studies in Athletics that was passed on to me by one of my great mentors, Dan Pfaff. I read this paper with great interest. Dr. Verkhoshansky raised several criticisms of traditional periodization theory. Namely that:

  1. It didn’t account for the dense competition schedule of the modern-day athlete and the requirement for them to be consistently on-form.
  2. It was not rooted in biology and instead was based more on a logical approach to organizing training load.
  3. It did not account for new advances in the scientific literature.
  4. It was not founded in science and was conceptually based.

As I moved from undergraduate studies into my master’s, I started to develop a bigger interest in the data that underpins the claims made in our profession. I’m not trying to be dismissive. Rather, I was looking to maintain a healthy skepticism.

Dismissiveness implies a negative feeling or scorn for an idea. There is far too much dismissiveness in our profession. Skepticism just means that more data is needed to accept the claim or proposition. Contrary to dismissiveness, I think there is too little skepticism in our profession.

There is too much dismissiveness and too little skepticism in our profession, says @JordanStrength. Share on X

I remember another conversation in graduate school with a professor who was also an avid triathlete. I was taking a course from him on muscle physiology and periodization came up in a conversation. He said: “Matt, you realize there is no scientific evidence supporting periodization theory. First, most studies are of short duration with relatively small sample sizes. Second, cells see signals and these signals are converted into cellular processes that lead to a tissue-level adaptation. The training stimulus is the signal for the cell. It is fundamentally unnecessary for the stimulus to follow some preplanned manipulation of volume, intensity, and density in order to activate cellular processes. The key is that the stimulus is progressed as adaptation occurs.” He concluded by saying: “Periodization is a concept. It is not based in science.”

I am fully aware that not everything that counts can be measured, and not everything that can be measured counts. But, at some level, we must seek data to support personal opinions and anecdotes. The science always has to come up behind the coaching.

As I reread these periodization textbooks, I was often left with questions like: How was training load quantified? How many athletes did they include in the analysis? How did they measure performance? And, why the hell doesn’t the data I collect on my athletes look like this?! My curves were never that pretty or consistent over time or between individuals.

I also found that despite seeing many well-designed (and very elaborate) periodized yearly training plans (YTP) with all sorts of color coding and time-trend graphs, very few coaches had any sort of retrospective approach for determining whether or not the plan was executed properly, and if so, whether it worked.

If we are to validate the concept of periodization theory in the real world, or on any pragmatic/operational basis, it seems necessary to have five things in the workflow:

  1. The initial hunch on which the periodization scheme is based;
  2. A process for designing the training plan;
  3. Execution of the training plan with some form of athlete monitoring;
  4. Verification that what was planned and executed were the same; and
  5. Achievement of the prediction (i.e., achieving optimal performance when it counted).

Instead, I found that these periodized training plans were more often than not just conceptual arrangements of the training stimuli at the front end of the training process without any objective and verifiable evidence about the efficacy of the plan and the predictions that were made at the back end.

Don’t get me wrong: I see huge value in planning at the front end. This is especially important in sports with logistical challenges like multiple competitions, lots of travel, and the need to integrate many components for optimal preparation such as injury prevention strategies, mental performance, environmental training exposures, strength training, and tactical skills development.

However, the basic tenet of periodization theory is that the planned manipulation of training variables (volume, intensity, density, type) is more effective for eliciting optimal performance at a known point in the future compared to some alternative arrangement. It ties in principles like general adaptation syndrome and concepts from other scientific disciplines to explain physical performance phenomena we observe in the sporting world. (As an aside, I actually don’t see anything fundamentally wrong with leveraging paradigms in other disciplines to better understand our own, although we need to be aware that we are doing this.)

We also need to understand that when we discuss periodization theory, we are entering a scientific domain. Scientific theories are meant to explain phenomena and to make accurate predictions. When theories are no longer able to explain phenomena or to accurately predict events, they may be replaced in part or in whole by another competing theory. This is called a “scientific revolution” and there has been much written on this topic in by philosophers (see Thomas Kuhn).

In a scientific revolution, there is something called the burden of proof. The burden of proof rests on the shoulders of those challenging an accepted theory to provide a different theory that explains the new anomalous events in question while still explaining everything that the previous theory could.

In my experience, periodization theory and the process of periodizing training have always seemed to parallel a mini scientific experiment. So, let’s call periodization a mini scientific experiment in which the manipulation of training variables is meant to elicit an optimal performance at a known time point in the future (this is our prediction).

In order for periodization to have any value, I think each unique training situation has to be seen as a mini experiment. Our dependent variable is performance, our independent variables are the training parameters, and our prediction is that we will achieve some desired performance outcome at a specified time point in the future. This is the only way for us to answer the question: Is periodization theory a useful or dated practice?

I would like to frame the potential practical or intuitive relevance of periodization. I will do this by proposing two somewhat trivial scenarios. The objective in both scenarios is to compete in a weightlifting competition. In both scenarios, we will ensure the application of equal training load. In this case, our variables are: session count, volume, and intensity. The only difference is that in Scenario A, the training load is dispersed over six weeks, and in Scenario B it is dispersed over 10 weeks.

If periodization was irrelevant (i.e., the planned manipulation of volume, intensity, or density) both scenarios should lead to a similar outcome. It would boil down to the number of times the cells saw the signal (permitting sufficient recovery, of course) and to the psychological readiness of the athlete (another reason why periodization might work in our favor).

Now, let’s factor in that the athlete in Scenario A is returning from a lower back injury and has three years of high-level training experience under his belt. The athlete in Scenario B, on the other hand, is healthy and has 10 years of training experience. Clearly, as we begin to add context and situational differences, the performance predictions that we make based on the manipulation of the independent variables might be different. It may be the case that we would expect Scenario A to lead to a poorer performance outcome, but on the other hand, maybe not.

Remember, these are just predictions and predictions should be tested and verified. This is the intriguing, forever interesting, and captivating aspect of coaching and human performance. We are dealing with unique scenarios that require our experience and expertise. Predictions are made, training plans are developed and executed, and our hypotheses are ultimately put to the test. I think this is where periodization differs from planning.

So, where does that leave us? Should we plan and periodize the training program or should we just randomly assign the training stimulus?

First, I absolutely feel it is necessary to plan. Planning is important for a variety of reasons, including: it often brings stakeholders together in planning sessions; it allows us to account for many aspects of the training program (a few listed above); and it forces us to think critically about what we are doing.

Second, I believe that there are optimal and sub-optimal arrangements of the training stimulus in terms of the timing, sequencing, volume, intensity, and density. I also believe that for periodization theory to have relevance, we have to continually put our performance hypotheses and predictions to the test with some level of objective and verifiable evidence. Periodization is a mini science experiment. We believe if we do x, y will occur at a specific time point. This is both the best way to approach training (in my opinion) and the most fun, as we will be forever challenging ourselves, our beliefs, and our training constructs.

I may be criticized for this next forecast about where we end up with periodization, but my opinion is that someone or some sport system is going to blend the critically important aspects of a coach’s instinct with the objectivity and ever-increasing presence of data.

As with most professions and disciplines, we are entering an era where a tuned-in practitioner who can embrace the ever-increasing presence of data and data science while still nurturing their instincts will be the one who ultimately forges an entirely new path. Who knows? Maybe someone will introduce a new theory for how we organize training that does everything that periodization theory does and then some. Whereas the ability to track performance variables in most sports was next to impossible 60 years ago when periodization theory was first conceptualized, we are now in an era with wearables and a big data approach to quantify performance and discover new patterns/relationships.

Let’s keep asking questions about periodization theory, thinking critically, challenging our own and each other’s beliefs (in a healthy, skeptical sort of way), and always strive to bring the science up behind the coaching.

To summarize:

The positives about planning for the coach are:

  1. It forces us to think critically about our training plans.
  2. It promotes collaboration.
  3. It enables us to integrate multiple components of the sport performance process.

Periodization differs from planning, as we are making a prediction about performance. This opens a door for us to test our predictions and to further our understanding of the training process.

I think periodization will meld into a real-world science that allows us to study training response, says @JordanStrength. Share on X

The negatives of periodization for the coach are:

  1. It remains more of a concept and less of a verifiable experimental process.
  2. The profession is in its infancy, so there are lots of unexplained phenomena that fly in the face of the basic tenets that underpin periodization theory.

The future for the coach is one that blends science and practice. With the progression in athlete monitoring, data science, and the profession’s knowledge base, I believe we will see periodization meld into a real-world science that allows us to study the training response in a verifiable and objective manner.

Freelap USA: What’s your specific take on jump profiling as it can fit into the weekly and monthly training organization and adjustment models?

Matt Jordan: I have spent the majority of my career finding a place for assessing strength abilities. I used to call them “strength qualities,” but I prefer the term “strength abilities,” as an ability can be quantified. I had a low to moderate level of success doing this early in my career.

The main factor that limited my success was the accuracy and precision of my assessments. Imagine a dartboard where the goal is to hit the bullseye with five darts. Accuracy refers to how close we are to the bullseye, whereas precision is how close the darts are to one another.

Your dart throwing could be precisely right (darts hit the bullseye and are close to each other), precisely wrong (darts are way off the bullseye and are close to each other), or generally right (darts strike around the bullseye but aren’t very close to each other). You could also be generally wrong, which basically means hitting everything in and around the general vicinity of the dartboard. To assess change in most performance factors, we need a decent level of accuracy (we measure what we want) and precision (our measurements are repeatable) in order to succeed.

All this changed when I took a trip to the International Conference on Strength Training in Colorado Springs (an excellent conference that will be in Perth, Australia in December 2018). I met Bill Sands, who introduced me to an affordable force plate system. I also saw a fantastic presentation by Dr. Per Aagaard, who dove deeply into the vertical jump not as a simple skill performed in sport, but as a movement that provided much deeper insight into the mechanical muscle function of an athlete. Here, it seemed possible to characterize neuromuscular readiness, neuromuscular fatigue, neuromuscular function after injury (and with aging), and performance reactions to a training stimulus.

I returned to the Olympic training center in Calgary (The Canadian Sport Institute Calgary) and realized we needed to pursue the acquisition of our very first force plate system because our jump mats, linear position transducers, and accelerometers where just not providing the accuracy/precision that we needed.

We purchased two force plates, as a single force plate was too small on its own to test our athletes. As time went on, we further refined our data analysis techniques, moving away from hand-bombing jump files to automated analysis with custom-built computer scripts.

As our capabilities evolved, our workflows, accuracy, and precision improved. However, all we had were numbers. We did not have very many relevant questions or hunches that we could test. One thing I did have with the dual force plate setup was a qualitative assessment of left versus right vertical ground reaction force asymmetry in squatting and jumping. This realization was one of my first real wins for using monitoring to improve my coaching ability.

I started to find that routine kinetic (force) asymmetry testing with my rehabbing athletes was informing me about the predictions I was making with the training programs I prescribed. My hunch was that my program would improve an athlete’s ability to generate force through the injured limb, and now I could test this hunch. I started to experiment. All of a sudden, I realized the key to integrating any assessment or monitoring strategy was having relevant questions and anchors. Anchors are important variables like injury status, training status, performance level, and phase in a training cycle. These are the variables that bring context and meaning to our data tables filled with performance metrics.

The key to integrating any assessment/monitoring strategy is having relevant questions and anchors, says @JordanStrength. Share on X

Jump monitoring eventually started helping me quantify an athlete’s reaction to a training program and test my predictions. I took the perspective that in addition to the skill of jumping, the related movement strategy and performance variables might provide deeper insight into the mechanical muscle function of my athletes. On a simplistic level, I applied a training stimulus and expected a temporary loss in performance or a change in jump strategy.

These occurrences are likely, due in part to neuromuscular fatigue, but fatigue is a complex state. Rather than use the term “fatigue,” a more appropriate term may be “performance fatigability”(Roger Enoka, 2018, personal communication). We understand performance fatigability as the effects of fatigue on performance or, in this case, the ensuing changes in various jump performance/movement strategy related parameters.

Following a decrement in performance, I expected an adaptation leading to an overall performance improvement. This is the basic response that characterizes the reaction to a training stimulus. My challenge was capturing this response—it seemed exceedingly difficult in most high-performance sport settings because performance in a given sport was either too variable or contained too much complexity for performance to be quantified with sufficient accuracy and precision.

As performance in most sports is really tough to quantify, it seemed I might benefit from having a surrogate measure; namely, a repeatable and standardized performance test that could be performed on an ongoing basis to help me characterize an athlete’s reaction to the training stimulus. Additionally, the test should also be pragmatic. If it isn’t pragmatic, it just won’t fit into the world of most high-performance sport settings.

This is where vertical jump monitoring fits, in my opinion. Assessing vertical jump performance and vertical jump strategy with the right equipment provides a standardized and repeatable performance test that fits well in a high-performance sport environment, allows us to assess an athlete’s reaction to the training stimulus, and may inform us about the athlete’s underlying mechanical muscle function.

Additionally, with a dual force plate system, we can measure the right vs. left force asymmetry in movements such as the reversal of the downward acceleration of the body center of mass (aka the breaking phase or the eccentric deceleration phase) and in the acceleration of the body center of mass (aka the propulsion phase or the concentric phase). These movement phases are important for many reasons, both in terms of training for injury reduction and performance.

Also, kinetic (force) asymmetries may help guide our processes around monitoring athletes throughout return to sport after injury and might help identify non-injured athletes who have trainable deficits. More scientific inquiry is required to support these propositions.

To summarize, many scientific studies on athlete monitoring list the variants of the vertical jump as potential movements that can help us monitor neuromuscular performance fatigability and an athlete’s reaction to a training stimulus. Additionally, there are many studies that link left vs. right asymmetries in movements like the vertical jump to non-contact lower limb injury and return to sport monitoring. From my perspective, weekly jump profiling allows me to test some predictions (not all) around aspects of my training program with a repeatable and standardized test. By evaluating jump performance and jump strategy variables, we may be able to detect relevant neuromuscular adaptations that transcend the skill of jumping and reflect the basic function of the neuromuscular system.

Serial monitoring of this standardized and repeatable performance test helps me address the following questions:

  1. Based on my training plan, I expect my athlete to be fatigued. Is he/she fatigued?
  2. Based on my training plan, I expect by athlete to be recovered. Is he/she recovered?
  3. What is my athlete’s typical reaction to a given training stimulus?
  4. Given that there are neuromuscular deficits undetectable to the human eye, does my athlete display potentially trainable deficits as assessed with interlimb force asymmetry testing?

While there is no single test that can provide all the answers, weekly vertical jump testing has been valuable for me. We perform three to five countermovement jumps on a weekly basis (typically after a rest day) and sometimes we perform them before the rest day and at the end of the microcycle to further characterize an athlete’s reaction curve.

Freelap USA: What’s your take on functional asymmetry in athletes, for those who are healthy, as well as those who are injured and looking to reach a benchmark in an injured limb?

Matt Jordan: I have spent a great deal of time in the past 10 years diving into functional asymmetries. As discussed above, this did not happen in some sort of preplanned way. We obtained a dual force plate system because the Pasco plates we purchased were the only ones we could afford, and they were too small to assess an athlete jumping. Therefore, we needed two plates. I had no preset plan to evaluate interlimb asymmetries.

I arrived at this application quite organically by realizing that there were interlimb asymmetries that I could not detect with my eyes, that asymmetries tended to decline with the right type of rehabilitation but not according to some preset timeline, and that best practice calls for all practitioners to evaluate neuromuscular function in athletes returning from injury to ensure they are sufficiently prepared for full unrestricted training and competition. I also felt that while sports medicine professionals had their own standards for evaluating athletes after injury, most of the metrics available for strength coaches didn’t really get at the persistent neuromuscular deficits we often observe after injury.

Dual force plate systems allow us to simultaneously measure the vertical ground reaction force from the right and left limbs during movements like jumping. We calculate a functional asymmetry index by measuring the impulse from the right and left limb separately over specific jump phases. Taking a phase-specific approach is important, as it helps characterize the entire jumping movement versus a single time point. (For example, the instant of the peak vertical ground reaction force—this variable is essentially meaningless in jumping.)

Force asymmetry testing is one of the single most important #neuromuscular metrics we collect, says @JordanStrength. Share on X

We use the impulse asymmetry index to identify athletes who might have diminished lower body structural tolerance. We perform at least five and sometimes 20 movement cycles so that we can assess not only the magnitude of the asymmetry, but also the interlimb loading variation. This might mean that an athlete either displays a more rigid limb loading strategy (i.e., reduced interlimb loading variability) or they have one limb that systematically produces less impulse than the other limb. Our preliminary data indicates that an asymmetry index above 15-20% in the eccentric deceleration phase of a countermovement jump is predictive of lower body injury in elite athletes. As such, we flag athletes that have big changes in asymmetry, or get into this red zone, and adjust training appropriately—or triage to the appropriate person on our medical team.

Assessing functional asymmetry in this manner is also useful for monitoring an athlete throughout the return to sport transition after injury. This allows us to quantify the effects of the rehabilitation strategies and to generate better conversations around return to sport decision-making, as we are incorporating objectively determined metrics. For example, regardless of how much time has elapsed since surgery and how confident we all may feel, a 30% left versus right impulse asymmetry is what it is.

I’ve found this type of monitoring to be particularly important and informative for a performance team. With athletes returning to sport, rarely are we saying yes or no to a given activity. Instead, we look at all the factors, such as the time of the year, season (e.g., is it an Olympic year?), confidence, fitness, movement competency, and neuromuscular testing data to support the best recommendation. We might find an athlete who has a compensation pattern or neuromuscular asymmetry that presents with fatigue—therefore, we might make a recommendation to limit the duration of the return to sport activity. Essentially, this testing is here to support decision-making, not to override anyone.

It seems the velocity end of the force-velocity spectrum is affected to a greater degree after injury than the force end. As such, we often observe <5% asymmetry in maximal isometric force in a leg extension movement alongside >20% asymmetry in the late phase of the squat jump when the athlete is moving at a higher velocity.

There are no hard and fast rules for clearing an athlete for return to sport, but a safe and reasonable objective is to measure interlimb asymmetries in high rate of force development activities like jumping of less than 15% with a goal of getting them down below 10%. A good goal for slower/higher force movements like isometric maximum voluntary contractions is to see asymmetries below 5-10%. It is also important to compare the overall force/power generating capabilities to the pre-injury level, as very often both limbs will have lost strength/power—meaning that asymmetries can be low due to a deficit in the non-injured limb.

Functional asymmetries are always present. It is impossible to be perfectly symmetrical in any one movement. So, we aren’t looking to determine whether there might be an asymmetry in a one-off movement. Instead, we are aiming to determine whether, over multiple movement cycles, a systematic asymmetry pattern exists.

Human movement is characterized by an optimal level of variability and the same is true for interlimb force asymmetries. Variability is a significant part of the natural world and can often be an indicator for health or peak physiological function. For example, it has been shown that elite pistol shooters display considerably better endpoint stability (i.e., gun control) than novices; however, the elite shooters display considerably more variability in muscle activation compared to the novices. It has also been shown that individuals with patellofemoral pain syndrome and lower back pain exhibit considerably less variability in muscle activation compared to their healthy counterparts.

Variability can often be an indicator for health or peak physiological function, says @JordanStrength. Share on X

We recently published a study in Medicine and Science in Sports and Exercise showing force asymmetry and thigh muscle activity data from elite alpine ski racers with/without ACL reconstruction. The ACL-reconstructed skiers did not display the interlimb loading variability patterns that we found in the non-injured group. While the non-injured skiers showed no systematic interlimb loading preference over three different phases of the squat jump, the ACL-reconstructed group displayed a pattern. This was reflected by ACL-reconstructed limb loading in the early phase of the squat jump, non-injured limb loading in the late phase of the squat jump, and ACL-reconstructed limb loading in the landing phase of the squat jump (averaged over 20 movement cycles).

In summary, force asymmetry testing is one of the single most important neuromuscular metrics we collect. We assess this in injured and non-injured athletes alike as a part of our routine athlete monitoring system. We flag asymmetries above 20%, but we aren’t just looking at the magnitude of the asymmetry. As human movement is characterized by an optimal level of variability, we also consider the loading patterns over multiple movement cycles with a special focus on the interlimb loading variation.

Freelap USA: What are some ways of looking at eccentric strength development for athletic deceleration, as well as sport movement in general?

Matt Jordan: I’m going to keep this one short. The best evidence shows that there are key differences between the neural control of eccentric and concentric muscle actions. In high-force situations, it appears the average human is unable to tap into their full strength potential. This has been called the “strength deficit,” and reflects the relationship between the force-producing potential of the muscle tissue and our neurological ability to access muscle tissue.

The strength deficit is quite apparent during forceful eccentric muscle actions where inhibitory factors at the spinal level and some factors mediated in the brain limit the ascending drive to the working muscle. We can assess these inhibitory pathways using various nerve stimulation techniques while recording force and muscle activity using surface electromyography. Per Aagaard published a recent paper on this topic that is available through an open access journal.

Additionally, there are many features inherent to skeletal muscle that make eccentric muscle actions different from concentric muscle actions. The differences have long been a problem of interest for scientists studying skeletal muscle. Many of these differences arise from passive elements at the level of the myofibril. One possible contributor to the passive force enhancement seen during lengthening contractions is the muscle protein titin. Walter Herzog also has a recent paper on this topic available through the same open access journal.

I think there are two questions at hand:

  1. How do we train eccentric abilities?
  2. How do we develop braking or deceleration skills?

The scientific research suggests that higher force eccentric training is required to elicit neural adaptations at the level of the spinal cord leading to the development of eccentric abilities, whereas higher velocity eccentric training is less effective. On a practical level, I have found that it may not be necessary for athletes to work with supramaximal loads to achieve this adaptation.

I typically start with slow eccentric strength training. A typical tempo might be six to eight seconds for the eccentric phase followed by a one-second concentric phase. I would perform this type of tempo with a four to six repetition bracket. I then move to a 4+4 or 3+4 program, where the athlete performs the first three to four repetitions on a four-second eccentric/1 second concentric tempo, followed by the remaining eccentrically performed repetitions on a tempo of six to eight seconds.

The final step is to use a device like weight releasers to overload the eccentric phase with loads approaching or greater than the 1 repetition maximum, but I would reserve this only for well-trained athletes.

A big issue in the industry right now is that in our quest for something new and something better, strength coaches may tend to overlook an athlete’s structural tolerance and general movement competencies when prescribing eccentric training methods geared towards neural adaptations. The bottom line is that if the athlete does not possess the postural control, postural strength, or technical competency for the movement in question, loading them up eccentrically will only serve towards unproductive outcomes.

Finally, when it comes to the skill of braking or decelerating, high-velocity loading is required. This can be done in the weight room, where we unload the athlete (they lift less than body mass) up to external loads equivalent to approximately 50-60% of body mass. These higher velocity braking movements are done in both unilateral and bilateral conditions.

I include change of direction and braking type movements as a part of neuromuscular warm-ups daily, says @JordanStrength. Share on X

I will always choose to add external load up to 50-60% of body mass or have the athlete drop off a box—I rarely, if ever, have combined an external load and a drop off a box together although I know this is a common practice. I also incorporate change of direction and braking type movements as a part of the neuromuscular warm-up on a daily basis to address technical, positional, and postural requirements related to sport skills.

Freelap USA: What is a commonsense approach to performance monitoring and tracking given the vast amount of data that can be derived from modern analysis?

Matt Jordan: I’m going to keep the answer to this one really short:

  1. Generate questions that matter. Simple questions are typically around the type of training prescribed and keeping athletes on the field of play longer (staying injury free and coming back safely after injury).

  1. Find anchors like injury statistics and validated performance indicators to make sense of the data you collect. Otherwise, they are just numbers floating in space.

  1. Record the simple things consistently rather than trying to get complicated with monitoring frameworks that just aren’t sustainable. Important things to monitor are: athlete readiness, training load, performance fatigability, and a marker of structural tolerance. (I use interlimb asymmetries in jumping.)

  1. Give feedback to your athletes regularly and translate knowledge—this should be done in person and in a very constructive way. At the end of the day, in most situations, this data actually belongs to the athlete (similar to medical information). We need to bring the athlete into the process to educate and create buy-in. What’s the point of all this data if it doesn’t change behaviors and make the athletes better?
  2. Learn the basics of statistical analysis, data manipulation, and how to visualize data. Very often, I drop into professional organizations that have heaps of data but are unable to work with big data tables and numbers effectively, so the retrospective analysis component (the fun part) is not done well. I use a free statistical software program called R. It’s downloadable on any operating system.

    You can learn to generate your own reports so that you don’t have to rely on third-party solutions, although the learning curve with R is shallow. (For those who are confused, we often say a “steep” learning curve but a “steep” curve would be one where learning occurs rapidly. A “shallow” learning curve is one where learning occurs slowly at first.)
  1. Garbage data in = garbage answers out. The most important part of a commonsense approach to this new world is ensuring you get good data at all costs. New instruments should be validated. The repeatability of all metrics should be assessed. Equipment should be calibrated and checked regularly. Metrics should be validated in relation to the things that matter. Having a whole bunch of crappy data will lead the world off course. So, we need to maintain best practices for data collection, data entry, data cleaning, data storage, data visualization, and data analysis.
Having a bunch of crappy data will lead the world off-course: Ensure you get good data at all costs. Share on X
  1. Finally, we are still in the business of human relationships. We don’t coach spreadsheets. We need to lead with our hearts and our humanity, search for facts, and when we find facts that don’t conform to our aspirations, we need to adjust our aspirations and embrace the facts.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF



Female Pole Vaulter

Critical Indicators for Pole Vault II: Cueing Hip Movement by Model

Blog| ByNoah Kaminsky

Female Pole Vaulter

All vaulters subscribe to one of a few technical models or methods that address pole vault differently. The goal to clear a bar is always the same, but each model emphasizes its own subtleties, and employs strikingly different coaching cues. If you want to compare these models, the best place to observe a difference is in the movement of the athlete’s hips as the hips represent the vaulter’s center of mass.

For example, the Champion Model allows hip deceleration to occur for the benefit of greater pole bend. Alternatively, the 640 Model emphasizes upward acceleration of the hips after takeoff, and views pole bend as a by-product of runway speed. Other technical models for pole vault exist, but they derive from the Champion Model or the 640 Model: These are the archetypes used by the pole vault community, and the two models I use to analyze hip movement.

Many athletic events have different technical models and coaching philosophies. Long jump has at least three models for leg movement during flight: hang, stride jump, or hitch kick.1 When you compare these styles to the shot put spin versus shot put glide, the differences in the long jump seem extremely subtle. That’s because the spin and the glide are entirely different models for the shot put preparation phase, which is analogous to the approach in long jump.

In the shot put delivery phase, which is comparable to the long jump flight phase, both the spin and the glide are essentially the same. Thus, regardless of preparation phase, glide, or spin, a shot putter seeks an excellent power position for the delivery of their implement. This is different than the long jump because the flight style (delivery) differs and the approach (preparation) remains the same. Pole vault bears resemblance to long jump because there’s no difference in the run (approach) between the Champion Model and the 640 Model. Again, like long jump, pole vault technical models differ in how they address takeoff and air mechanics.

Hip Movement

For all vault models, hip movement is a critical indicator for takeoff and air mechanics because hip movement shows how proficiently the athlete creates pole speed. Ideally, an athlete’s hips never slow down after takeoff.

For all vault models, hip movement is a critical indicator for takeoff and air mechanics. Share on X

Elite vaulters, like Sergei Bubka or Yelena Isinbayeva, demonstrate that even the Champion Model can achieve upward hip motion with very minimal deceleration. Unfortunately, for a successful Champion Model jump with minimal hip deceleration, the necessary strength and speed requirements are exorbitant. For that reason alone, many Champion Model vaulters find themselves shut out from higher bars once they’ve maxed out their grip and pole, if they remain at the same level of strength and speed. Again, this argues in favor of teaching the 640 Model to new vaulters. Nevertheless, the widely used Champion Model deserves analysis. 

Coaching Hip Movement in the Champion Model

Consider Lilly, a Champion Model vaulter, who focuses on bending the pole by letting her hips decelerate after takeoff. When she is under the pole with arms pressing up high (aka blocking out), she initiates her swing with arm and core strength so that she can invert, meet the unbending pole, and slingshot herself over the bar. When you watch Lilly’s hips, they accelerate from her free takeoff, decelerate as she transfers mechanical energy into the pole, and then finally accelerate again as she brings her body to inversion.

When Lilly attempts a personal best, her coach might increase her grip or pole size. Here are the possible results of these adjustments:

  1. Lilly increases the height of her grip on the pole. The pole bends more, but her hips decelerate so extremely that her runway speed becomes irrelevant. The remainder of her air mechanics rely on her arm and core strength. If Lilly is not strong enough to control the pole with her higher grip, then she will get stood up by the pole somewhere above the plant box, which is dangerous. Grip Lilly back down and tell her to keep her speed up.
  2. Same adjustment as Scenario One. Lilly grips up. If Lilly is really strong, then she rows through easily and completes the jump successfully. Her hips decelerate minimally. Keep everything the same for the next jump.
  3. Lilly switches out her pole for a longer or heavier pole. The new pole does not bend as much as before and her jump becomes more like a straight pole drill. If Lilly is not fast enough to jump on this pole, her hips will decelerate completely as she gets stood up by the pole, or worse, rejected from the pit back onto the runway. Either Lilly should not be on such a heavy pole, or she should grip down and treat the next attempt as a straight pole drill. Lilly should initiate her swing sooner.
  4. Same adjustment as Scenario Three. Lilly goes up a pole. If Lilly has sufficient runway speed, then she moves the pole to vertical and relies on her strength to execute the jump. In this case, her hips move fluidly upward, above her grip, and she clears the bar. Keep everything the same for the next jump.
  5. Lilly goes up a grip and switches out for a heavier pole. Lilly is faster and stronger because she’s committed herself to speed work and weight training. It’s been a while since her last competition and she’s a different athlete since last time. She nails the jump, her hips decelerating slightly and then moving upward again. She clears a higher bar for a new personal best. She should go up another grip and move back a half foot on the runway for her next jump. Go Lilly!

Although the scenarios above offer coaches simple cues and adequate feedback based on hip motion, the Champion Model has problematic limitations. Young athletes who are new to pole vault may not have the strength or speed to achieve sufficient pole bend—even on a small pole. On the other extreme, nobody can grip up indefinitely because the hips will decelerate, and the athlete will get stood up. At some point, the height of the grip becomes too high for even the strongest and fastest vaulters.

With the Champion Model, the height of the grip eventually gets too high for even strong vaulters. Share on X

The widely accepted notion that you can load a pole with energy from the approach only works if you don’t lose that energy when you plant the pole. When the grip is too high or the pole is too heavy, the forward transfer of energy into the pole will go right back into the athlete in the opposite direction. Last I checked, the opposite of forward is backward, and definitely not upward. This is the reason the hips sink or decelerate in the Champion Model.

Coaching Hip Movement in the 640 Model

In the 640 Model, the hips should continuously move upward, without any deceleration. A 640 Model vaulter takes off farther out from the box, and they begin pulling on the pole immediately with the extended bottom arm. A big jump up, active pull, and good trail leg swing bring the hips upward to meet an unbending pole. As usual, speed and strength are crucial to the success of this model, like any model, but the emphasis is different. 640 Model vaulters focus on achieving maximum pole speed (how fast the pole moves from plant to vertical) and view pole bend as a by-product of a well-executed jump.

With hip movement tied to pole speed, it’s absolutely critical that 640 Model vaulters actively pull on the pole from takeoff so that the hips never decelerate. 640 Model vaulters get off their poles sooner than Champion Model vaulters because the emphasis is always on pole speed. Sam Kendricks is a good example of a vaulter who moves through the jump incredibly fast and has great pole speed. His hips never decelerate. Kendricks may not strictly subscribe to the 640 Model, but he’s a lot closer to the 640 than the Champion Model.

Another measure of pole speed is the end position of the pole. A 640 Model jump typically ends with the pole at 85-95 degrees, whereas a successful Champion Model jump ends with the pole past vertical at 95-120 degrees. This is why Champion Model vaulters tend to push their standards farther back than 640 Model vaulters.

The hips should not decelerate in the 640 Model because the energy from runway speed transfers less into the pole and more into the vertical motion of the vaulter. If the athlete does not continue to add energy into their ascent by pulling on the pole, then their hips would decelerate or sink after takeoff because they are not active with their arms. Forget what you’ve heard about the total energy after takeoff. You can add energy to the system once you’re in the air! An athlete may not be able to bend the pole more than their runway speed allows, but that grilled chicken and salad they ate for lunch provides enough energy to pull on the pole and elevate the hips!

When you observe a 640 Model vaulter decelerate their hips or lose pole speed, there are a variety of factors that may cause this result. Let’s consider Billy, a seasoned collegiate 640 vaulter who’s not having a great practice session. Billy’s approach on the runway is excellent. He hits the right mid-mark and he always sets up a good free takeoff. Unfortunately, Billy has been struggling with his takeoff and air mechanics today. His hip movement and pole speed are critical indicators for feedback after each jump. Here are some scenarios to address:

  1. Billy’s hips rise slower than usual, his pole speed is slow, and his left arm collapses. He definitely does not have the hip height to wrap the bungee he usually wraps with ease from his three-step approach. Billy was flat. He needs to jump up more at takeoff, which should correct for the collapse of his left arm, too.
  2. Billy’s hips rise initially, but they decelerate once he’s in the air. His pole speed was adequate, but not as good as his best jumps. Billy had a good jump up at takeoff. There are a few possibilities to explain this jump:
    • If Billy did not pull on the pole immediately after a good takeoff, then he pushed too much on the pole and could not bring his hips upward easily. Pushing on the pole results in landing off to the side in the pit.
    • If Billy’s step was tight because he overstrided on his last step, then his left arm collapses and he cannot pull on the pole proficiently. He almost gets hit by the pole after takeoff and he cannot follow through to begin the turn at inversion. Again, his hips decelerate in this situation. Billy can either go back a half foot on the runway or correct his last two steps before takeoff. His last four strides should be stride-stride-long-short.
    • If Billy collapses the left arm in his pole plant, then he needs to extend more. This is not a significant adjustment, but it’s enough to keep his hips accelerating upward and achieve higher clearance.
  3. Billy jumps up well at takeoff, pulls proficiently, and his hips rise continuously. He has great pole speed and lands deep in the pit. Awesome! Billy can either add resistance by increasing his grip by 3 inches or move back 6 inches on the runway. If Billy bends the pole too much, then he should switch poles for a stiffer one. The next jump should look good. If it doesn’t, then he did not execute the jump similarly to the previous one. Revisit scenarios One and Two above.
Your observation of hip motion is critical to assessing the jump and providing feedback to athletes. Share on X

Regardless of the model that you follow, your observation of hip motion is critical for assessing the jump and providing feedback to your athletes. I only addressed the Champion and 640 models because other pole vault models are either derivatives or variants of these models. For example, the Traditional Model, utilized by Polish vaulter Władysław Kozakiewicz, spawned the widely used Champion Model, but is not a common technical model anymore. The Innovative Model, practiced by high school record holder Mondo Duplantis, derives from the Champion Model and involves a double leg tuck instead of a single leg drive and swing. Again, the masters of each model demonstrate very minimal hip deceleration.

Switching Technical Models

For one athlete, switching technical models is a challenging process. If you’re a coach, switching models can be excruciatingly painful because you have to transition all of your athletes together. Don’t be surprised if some athletes just quit. There are some events in which it’s easy to switch models, but not pole vault.

It’s always easier to switch models that differ in the preparation (approach) rather than in the delivery (takeoff). In shot put, the switch from glide to spin, or vice-versa, doesn’t have to be a painfully slow transition, because the preparation phases differ. In pole vault, the switch from Champion to 640 can be detrimental to the athlete because takeoff has entirely opposite blocking cues. Champion Model coaches say, “Push!” 640 Model coaches say, “Pull!”

A vaulter may find greater success with a new technical model, but patience is absolutely necessary. Share on X

It might take years before a Champion Model vaulter can shed their old habits and become successful with the 640 Model. An athlete may find greater success with a new technical model, but patience is absolutely necessary. You can’t rush skill development because, as the saying goes, old habits die hard.

Comparing Technical Models

The jury is still out on which technique is most effective for all these events, and that’s okay! Most of the pole vault community uses the Champion Model, or some variation thereof. Mike Powell broke the long jump world record with a hitch kick, but when I went to college, I saw mostly hang style and stride jump. Long jumpers rely on all three fairly equally.

The shot put spin became popular among American throwers back in the ’80s because many shorter, less explosive throwers discovered they could generate more impulse with less force than their larger, more explosive opponents. In international competition, the glide is more popular, but the men’s world record is a spin. The women’s world record is a glide. It’s hard to say what’s best. Sometimes, what fits your athlete’s abilities and needs is really the best model to use.2

Maybe, but not necessarily. Experimental support for one model over another would rely heavily on historical records and mostly subjective evidence. This doesn’t mean that one model isn’t absolutely better than another. It’s certainly possible. Rather, it’s just very difficult to prove it beyond reasonable doubt. At Apex Vaulting Club, we use the 640 Model. We have a good coaching system in place and I have confidence in our head coach.

The only argument for one model over another is based empirically on safety. In my observations and experience jumping with both models, the 640 Model offers athletes a safer recovery after takeoff. Even with good coaching, Champion Model vaulters seem to get stood up by the pole more often, which decreases the likelihood of landing safely in the pit. This can result in a dangerous recovery, like landing on your feet, landing in the box, rolling an ankle, or being rejected by the pole back onto the runway. Of course, this is also possible with the 640 Model, but in my observations, not to the same degree as with the Champion Model.

I’m more confident in the 640 Model as it’s safer and more accessible for less-experienced athletes. Share on X

When I compare my vaulting experiences, I recall 40-50% of all Champion Model practice jumps resulted in being stood up, whereas that result was about 5-10% for all 640 Model jumps. Overall, I have greater confidence in the 640 Model because it’s safer and more accessible to younger, less-experienced athletes. Those are the individuals that matter most in our sport—not the elites. If we want pole vault to grow and become more popular as a sport, then we must make it more approachable to the average athlete. The 640 Model supports this idea.

Integrating Hip Movement into the Coaching Sequence

When you see deceleration in the hips, or slow pole speed, you must consider the factors that produced this result. If your athlete clears a bar with poor hip motion, then positive feedback is good, but it is not enough. Your athlete still needs to jump again. By observing hip motion and isolating these factors, you will reinforce better habits and improve performances more sustainably. Furthermore, you will promote your athlete’s confidence in practice sessions, which will carry over to their ability and demeanor at meets.

Hip movement is one of three critical indicators for coaching pole vault, but it only addresses two components of the jump—takeoff and air mechanics. In my last article about mid-marks, I emphasized the sequence in which coaches should analyze proficiency.

  1. Pole carry
  2. Run
  3. Plant
  4. Takeoff
  5. Air mechanics

So far, in this article and the last, I have covered numbers 2-5. In my last article, I discussed how mid-marks provide more data for a coach to measure speed on the runway and predict the quality of takeoff. In my next article, I will address drill proficiency, the final critical indicator for successful pole vault coaching. The best vaulters are highly skilled individuals within their coaching systems, regardless of their technical model. I’ll discuss how component-specific drills reinforce skills and improve long-term performance.

References

  1. Linthorne, N.P. (2008). “Biomechanics of the long jump.” In R. Bartlett & Y. Hong, Handbook of Biomechanics and Human Movement Science(pp. 340-353). Routledge.
  2. Aikens, Jim. “Teaching the Glide Shot Put Drill Sequence.” SimpliFaster blog. Spring 2018. Accessed August 18, 2018.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF



Athlete Stress

Stress, Recover, Adapt: Strategies to Mitigate Performance Decrements

Blog| ByDr. Jarred Boyd

Athlete Stress

Athletes at the collegiate, professional, and Olympic levels are training harder than ever before to gain a competitive advantage over their opponents. Even at the youth level, if you visit any large or small town, you’ll witness athletes dedicated to improving their physical abilities in pursuit of reaching the next level. This is great for the world of sports, as it cultivates a higher level of competition.

The increased attention to physical preparation, however, brings with it a greater need to recognize that there should remain a balance for optimizing athlete recovery. It is imperative to remain conscious of this concept; otherwise, the expression of the physiological and biological systems will not meet the demands of an athlete’s environment.

Generally speaking, a physical preparation coach’s ultimate goal is to reduce the potential for injury by prioritizing fundamentals and enhancing the development of biomotor qualities (strength, power, and speed), which will simultaneously aid performance. One of the main goals for a sports physical therapist, on the other hand, is to facilitate the mitigation of pain while improving comprehensive capacity.

Ultimately, the objective of both professions is similar: to increase the longevity of each athlete’s capacity to express their highest potential while remaining durable. To accomplish these goals, we need to have a basic understanding of stress, so we can develop resilience and prepare players for the physical demands of competition.

This article highlights three practical methods to facilitate a shift to recovery and promote the positive adaptation to training loads. With this information, all parties involved in the athletic development process, especially physical preparation coaches and practitioners, can further assist athletes in displaying high physical capacities while mitigating their susceptibility to injury.

I don’t intend to create a narrative that training load, which is indeed a stressor, is the injury instigator and performance detractor in and of itself. Instead, quite the opposite is true. We should view physical training as a prophylactic and antidote to injury, which occurs only if we establish an accumulation of training load, or steady-chronic exposure, as opposed to sudden and abrupt, acute exposures.

For this to occur, an athlete must be prepared to accept their next bout of training. Athletes acquire this readiness from inter-session recovery, which discourages maladaptive disturbances in the system and encourages adaptive responses.

Recovery Strategies

The purpose of stress recovery adaptation is to place the nervous system in a state that’s ready to act and react efficiently within an ever-changing environment, both physiologically and psychologically.

1. Positional Breathing

First it’s important to understand that when we endure stress, especially from training (dependent on exercise selection, of course), our system typically results in rigidity or extension bias. This position is beneficial for force production and performance, but if it’s sustained during low-level daily activities, it can result in decreased variability, adaptability, and consequently recoverability.

Extension Bias
Image 1. Higher threshold exercise activates the brain’s perception of fatigue and threat, preventing a real opportunity to recover.

When a stressor is introduced, your body undergoes primitive reactive patterns that limit degrees of freedom, or available options. If you think about it, your position is a subconscious physical manifestation of your emotions and the state of your autonomic nervous system, or simply put—dynamic outputs reflecting dynamic inputs. This can self-perpetuate and increase sympathetic drive that creates a vicious CNS dysregulation cycle and alters sensory feedback to the brain.

In simpler terms, the perception of fatigue and threat is more readily activated with higher threshold exercise so you never get a real opportunity to recover.

Many athletes experience a heightened perception of soreness and tightness from this position and will hammer away at a joint by doing aggressive mobility and stretching techniques. Sometimes those mobility restrictions and areas of tension are present simply because their brain does not deem it safe to allow the body to access certain positions. Controlled breathing, especially while reaching and pushing, can mitigate these sensations and set athletes up to recover.

To drive your system into recovery mode, perform two rounds of five exhalations in a circuit. Share on X

We can access these tough and restricted positions by performing diaphragmatic breathing with long slow exhales. The breathing encourages better input and creates awareness to reference the position consistently while also establishing time under tension. Conscious breathing stimulates vagal tone so that the parasympathetic nervous system is more pronounced and also provides an opportunity to be at ease with the earlier unpleasant sensations. Performing two rounds of five exhalations, completed as a circuit, can be a great way to drive your system into recovery mode.


Video 1. The athlete demonstrates the All Fours Bear Hold with proper breathing technique.


Video 2. The athlete performs a lat hang with a strong exhale followed by a five-second held breath and then a soft inhale.


Video 3. The athlete shows how to do downward dog toe reaches and when to inhale and exhale.


Video 4. The athlete performs a 90-90 hip lift with a shift while breathing deeply.

2. Aerobic

The aerobic system is another area where we can optimize recovery. Why? It is the most largely adaptable energy system and can mitigate the perception of fatigue and threat. Remember, when we encounter a stressor, we become more sympathetic and rely less on the aerobic system and more on the alactic and lactic systems. When running from a bear, we need immediate energy that promotes high biological and mechanical output, and the aerobic system doesn’t cut it.

The aerobic system instead prioritizes a long-term supply of energy during low-level intensity outputs and ensures that movement variability remains high. With low variability comes a decreased capacity to adapt as we lack the options necessary to meet the environmental conditions.

Targeting the aerobic system will promote not only post-session recovery but also intra-session recovery during intense training days by resynthesizing energy currencies and delaying the onset of fatigue-encouraging energy systems.

The Aerobic System is the Most Largely Adaptable Energy System:

  • Increases mitochondrial density (more ATP)
  • Improves capillary density and circulation
  • Increases aerobic enzymes
  • Decreases resting HR
  • Decreases sympathetic dominance
  • Increases left ventricle/stroke volume
Aerobic pyramid
Image 2. Aerobically fit individuals may experience a smaller sympathetic response when a stressor is present. Individuals who improve significantly in their aerobic fitness experience stress-buffering effects during stress exposure and during recovery from stress.

Two methods for aerobic recovery that I’ve found helpful (with credit to Joel Jamieson of Ultimate MMA Conditioning) are cardiac output and high-intensity continuous training.

  • For cardiac output, the mode and load should be HR 120-150, 30-90 minutes of continuous activity (biking, swimming, jump rope).
  • For high-intensity continuous training: max resistance, HR 130-150, 10-20 minutes, low speed (spin bike, lunges uphill, step-ups), potentially performing two rounds.

I prefer these strategies because they are low impact and reduce the stress and strain on contractile and non-contractile tissues, especially tendons. Performing this 1-2x per week—dependent on exercise load, exercise selection, and athlete level—can be very impactful.

Aerobic Chart
Image 3. Cardiac output and high-intensity continuous training are two preferred methods for aerobic recovery to mitigate the perception of fatigue and threat.

3. Soft Tissue

Contrary to popular belief, no amount of pressure you apply to soft tissue will break up any scar tissue nor will it break through adhesions and lengthen tissues. It’s important to understand that you cannot rub yourself flexible. That does not mean that foam rolling is not a valuable part of the recovery process. Foam rolling is a great way to modulate unpleasant symptoms (soreness) and decrease the sensitivity of heightened tissues.

It's counterproductive for athletes to beat themselves up by foam rolling aggressively. Share on X

It’s counterproductive to have your athletes beat themselves up by foam rolling aggressively to the point of tears, grimacing, and breath-holding. This strategy will simply increase sympathetic tone throughout the body. As a result, they’ll feel like they need to roll even harder next time, continuing the cycle.

Instead, breathe to decrease tension and tone and give a relaxation effect via the parasympathetic nervous system. Although this is a more subjective than objective strategy, it is just as critical. Remember that our perception highly influences a stress reaction, and we must take into consideration the internal load of training.

Internal loading provides insight into the athlete’s perception of effort-fatigue and psychological reflection. Integrating soft tissue can alter this internal loading, specifically the psychological response to the external loading or work completed.


Video 5. The athlete demonstrates foam rolling for the hip flexor.


Video 6. The athlete performs the two-step process for glute foam rolling.


Video 7. The athlete shows us how to foam roll the mid- to upper back.

To further grasp the reasoning and rationale of these strategies, it is imperative to establish a basic understanding of stress, from its ramifications to its manifestations.

General Adaptation Syndrome

One of the first to give a scientific explanation for biological stress was Hungarian endocrinologist Dr. Hans Selye. He called his stress model, based on physiology and psychobiology, the General Adaptation Syndrome (GAS). The model states that any event, real or perceived, that threatens an organism’s well-being (a stressor) leads to a three-stage bodily response.

Stage 1: Alarm

  • Fight-or-flight response and sympathetic nervous system are activated
  • Resources are mobilized

Stage 2: Resistance

  • The parasympathetic nervous system returns functions to normal
  • Resources are focused against the stressor
  • HR, BP, RR increase, and body remains on red alert

Stage 3: Exhaustion

  • Continued stress exhausts resources and causes fatigue and system failure

We must understand that physical training is a stressor, though controlled, that initiates this cascade of events. The goal is to remain outside of exhaustion, commonly referred to as overtraining in the performance world. Exhaustion may lead to performance decrements and can have serious physical ramifications systemically. One may ask, how is training a stressor if I don’t feel stressed afterward?

Physical training is a stressor, causing a cascade of neuroendocrine and physiological events. Share on X

Essentially, stress is stress is stress and is created equal. However, it may not appear to be at first. Whether we’re running from a lion, watching a horror movie, or facing upcoming deadlines, our system typically results in the same general neuroendocrine and physiological cascade of events initiated at the hypothalamic-pituitary axis. But we may have varying levels of subjective perceptions of stress (physical, biological, psychological, emotional, etc.) because our cognitive appraisal varies, which alters our perception of the stressor.

The stress response triggers the sympathetic nervous system, which is not innately bad. Issues arise if we remain in this sympathetic state during everyday low-threshold activities and don’t shift to our parasympathetic branch to promote recovery, regulation, and regeneration.

Sympathetic Chart
Image 4. This chart depicts the responses that transpire from activating the sympathetic and parasympathetic branches of the autonomic nervous system. It’s is easy to see how parasympathetic encourages down-regulation on many bodily systems, which is the focus for recovery.

 

Stress Is a Necessity

Realize that stress is not a synonym for bad. Stress is vital and necessary for life, and without it, our evolutionary advantages would not exist. The diagram below depicts why stress is necessary. With controlled stress, we can manipulate variables to suit our current capacity and future requirements. The ultimate outcome is maintaining resiliency and health as long as possible.

The only way to create durability is to refine the system, and the only way to refine the system is to disrupt homeostasis temporarily, instigating change. This yields adaptation and a system that is neither underdeveloped nor overdeveloped but robustly efficient.

Durability Chart
Image 5. Controlled stress is necessary to maintain resiliency and health for as long as possible.

With constant, repetitive, high-input stressors—specifically rigorous training for this article—an athlete may be posed with a threat. The threat itself is not an issue since we subject ourselves to threat (a stressor) each time we train. Regarding physical and physiological qualities that a person wishes to obtain, there has to be a stressor applied. If you want to be bigger, faster, or to lift heavier, the system has to experience a stimulus strong enough to warrant a shift.

Issues occur when you continue to have withdrawals (stressors) without making deposits (recovery). That’s called an overdraft. No one wants an overdraft. To up your deposit game, you must shift your system to a state where recovery can occur and not focus on speeding up recovery. When we emphasize speeding up recovery, we impede the body’s three natural processes.

Think of it this way: we have to acquire money before we purchase material things. We have to do the same with the body and focus on recovery, restoration, and energy resources before attempting to purchase physical and physiological assets.

Contrary to common belief, physical training—whether running and conditioning or strength-oriented—does not promote homeostasis. It disrupts homeostasis. Essentially, this means that at the moment you are training, you are not getting stronger, bigger, or faster. Instead you are (or should be) challenging the tissues of all your systems.

For this adaptation to be positive, we need to promote adequate recovery. Without recovery—which includes nutrition, hydration, sleep, and often forgotten sympathetic mitigation—we may have poor outcomes leading to maladaptation. This leads many athletes to train even harder or run even farther, the complete opposite of what their system needs.

If you train to recover like you train to adapt, you improve your ability to restore homeostasis. Share on X

If you train to recover like you train to adapt, you can improve your ability to restore homeostasis. Your body does not care about making you stronger or faster if you are constantly in a recovery deficit. Instead, all resources and energy are used to handle daily hassle stressors and the demands of excessive intense physical activity on the body. We want to ensure there are enough resources and energy available for tissue repair and stress recovery adaptation.

Stress Overload

As we know, neurological, physiological, and biological processes, which yield performance, are all outputs from the brain—it is the governor. Every time an athlete steps into the weight room, let alone the field of play, there are endless inputs (afferent information) and outputs (efferent information) that attempt to elicit the most efficient reflexes and reactions. As a result, the brain, which is the central nervous system, has to recover to function at its highest capabilities otherwise acquisition is impacted negatively.

Stress Bucket
Image 6. The stress bucket shows how we have a certain degree of propensity to endure stressors. If we fail to allocate time to recover from training, we risk an overflow and experience performance decrements.

The body’s limited resources and energy for coping with stressful situations mean that GAS has evolved to be only useful for short-term animal survival. The harder we train without recovery, the less variable this system becomes as the sympathetic state dominates, leading to difficulty with down-regulation and adaptation to environmental demands. This accumulates to cause poor adaptation, disrupted sleep patterns, fatigue, and ultimately poor performance.

The stress bucket is a great depiction of how we all have a certain degree of propensity to endure stressors, including:

  • Significant life change: marriage, children
  • Catastrophic: unpredictable large-scale events
  • Daily hassles: seemingly minor negative events—long store lines, losing car keys
  • Ambient: globally integrated into the background of the environment—noise, crowding
  • Physical: exercise, physical activity, and training

If we fail to allocate time to recover from training, which is a very controllable input, then we run the risk of overflow and performance decrements. While there is a myriad of strategies to encourage recovery, the three suggestions provided earlier in the article are all effective and efficient methods to use in an athlete’s programming.

Assessment Strategies

Determining when we need to prioritize recovery strategies throughout the athletic preparation and competition continuum requires consistent monitoring of key indicators. Although measurements from biochemical, hormonal, and immunological perspectives do exist, they are not easy to implement since they’re typically more invasive and require more time allocation.

Ideally, load monitoring involves measuring both external and internal loads, where measurement tools range from general to sports-specific and are either objective or subjective. Measuring the external load typically involves quantifying an athlete’s training or competition load, such as hours of training, distance ran, weight lifted, or the number of games played. Other external factors, however, such as life events, daily hassles, or travel may be equally important.

We can measure internal load by assessing the internal biological, physiological, and psychological responses to the external load such as heart rate (physiological/objective) and rating of perceived exertion (psychological/subjective).

It’s critical to implement mixed methods when monitoring an athlete’s response to training load. There is no unanimous method to determine the overall effect of stress from training load on performance, fatigue, and injury because there are numerous factors that influence an athlete’s actual response to load. Take, for example, an overweight middle-aged male who will have very different physiological and perceptual responses (internal load) to an 800m run than a trained runner. Although the external training load is identical, the internal training load will be much higher in the older unfit individual.

We can gain an understanding of an athlete’s perception of load by consistently providing subjective questionnaires. Several researchers have investigated the use of subjective monitoring and found it to be a sensitive and consistent way to determine acute and chronic changes in an athlete’s well-being in relation to load.

Subjective Assessments

Subjective assessment measures include the Recovery Stress Questionnaire for Athletes (REST-Q-Sport), Daily Analysis of Life Demands for Athletes (DALDA), and Profile of Mood States (POMS). Rather than administering the entire questionnaire, it may be more time efficient to review questions that elicit tangible responses. Simple inquiries before training can be extremely valuable for detecting unplanned fatigue.

Heart Rate Variability and Rating of Perceived Exertion

There’s been hype recently over assessing heart rate variability (HRV), which is the measure of variation in time intervals between heartbeats. Essentially, by assessing HRV, we can gain a physiological indication of the autonomic nervous system’s (ANS) state. The ANS, which regulates heart rate, blood pressure, breathing, digestion, etc., will reveal less variation during higher sympathetic activity. The problem is that measuring HRV is not always feasible. Instead, session rating of perceived exertion (RPE) can be a quick and easy way to measure an athlete’s internal response to the training session’s intensity.

Range of Motion and Flexibility

Joint range of motion and flexibility also provide insight into stress and load accumulation. In team sports, a strength coach may not be able to assess athletes individually. An efficient approach I’ve found effective is gauging the toe touch and split squat. By assessing these two movements, we have a glimpse of the outward reflection of the autonomic nervous system’s variability.

Both movements will reveal the ability to offset the extension bias. Each movement may indicate potential structural fatigue to contractile tissue (toe touch) and sensorimotor fatigue due to the coordination required between upper and lower extremities in an asymmetrical pattern. We should not use these as a stand-alone, and and we should establish a baseline quality (split squat) and quantity (toe touch) before future assessments.

Toe Touch Split Squat
Image 7. Assessing the toe touch and split squat will reveal an athlete’s ability to offset extension bias.

No matter which assessments you choose, the ultimate goal is to answer two basic questions: How is the athlete tolerating and adapting to the physical stressors, and is the athlete prepared for the next exposure?

Conclusion

Remember the primary goal of training is to create controlled stress that will stimulate a change in the efficiency and effectiveness of each system throughout the body. Before this stress adaptation can occur, however, an athlete must be in a recovery state. It should not be the intention of a performance coach, skill coach, or therapist to speed up recovery and limit the body’s natural processes. Instead, our goal is to ensure athletes are in a state ready to recover.

“If you train too hard on your easy days, soon you will be training too easy on your hard days.”—Keijo Hakkinen

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF


Relevant Reading and Resources

Sapolsky, Robert M. Why Zebras Don’t Get Ulcers: An Updated Guide to Stress, Stress-Related Diseases, and Coping. W.H. Freeman, 2001.

Wingo, Mary K. The Impact of the Human Stress Response: The Biologic Origins of Human Stress. Roxwell Waterhouse, 2016.

Schulkin, Jay. Allostasis, Homeostasis and the Costs of Physiological Adaptation. Cambridge Univ. Press, 2012.

Halson, Shona L. “Monitoring Training Load to Understand Fatigue in Athletes.” Sports Medicine, 2014; 44(2): 139-147.

Budgett, R. “Fatigue and Underperformance in Athletes: The Overtraining Syndrome.” British Journal of Sports Medicine, 1998; 32(2): 107-110.

Thorpe, R. T. (Robin), et al. “Monitoring Fatigue Status in Elite Team SportAthletes: Implications for Practice.” International Journal of Sports Physiology and Performance, 2017; 12(2): S2-27-S2-S35.

Everly, George S., and Jeffrey M. Lating. “The Anatomy and Physiology of the Human Stress Response.” In: A Clinical Guide to the Treatment of the Human Stress Response. Springer, New York, 1970.

Taylor, et al. “Fatigue Monitoring in High PerformanceSport: A Survey of Current Trends.”Journal of Australian Strength and Conditioning, 2012; 20(1): 12-23.

Schwellnus M., Soligard, T., Alonso J., et al. “How much is too much? (Part 2) International Olympic Committee consensus statement on load in sport and risk of illness.” British Journal of Sports Medicine, 2016; 50(17): 1043-1052.

Gabbett, T.J. “The training-injury prevention paradox: should athletes be training smarter and harder?”British Journal of Sports Medicine,2016; 50(5): 273-280.

Basketball Player Layup

Training Loads and Physical Preparation in the NBA with Dr. Ramsey Nijem

Freelap Friday Five| ByDr. Ramsey Nijem

Basketball Player Layup

Ramsey Nijem DSc, is entering his fourth season with the Sacramento Kings, his second as the team’s head strength and conditioning coach. Responsible for all aspects of sport performance, Nijem spent the last two seasons as the Kings assistant strength and conditioning coach. Before joining the Kings, Nijem was the head strength and conditioning coach at Santa Barbara City College, and prior to that he was an assistant strength and conditioning coach at UC Santa Barbara.

Freelap USA: Can you explain your approach to monitoring the training loads of your players? How has this impacted their health, as well as how you continue to program work in the weight room?

Ramsey Nijem: Monitoring training loads is critical for prescribing appropriate loads. Understanding how much the athletes have done (considered the external workload) and how they are responding (considered the internal workload) provides a measure of readiness and serves as a compass to guide loading parameters. We monitor game loads in the NBA with a camera system positioned above the court in every arena, which provides GPS-like data such as distance, speeds, and frequency of accelerations and decelerations. In practice, we use a wearable to quantify loading demands.

We also collect subjective wellness data to understand how our athletes are handling not only the demands of the game, but also the stressors of the season—travel being the biggest non-basketball stress. With 82 games in six months, half of which are played on the road, there is no shortage of stress influencing the athlete’s ability to recover and perform.

This data is used to generally estimate levels of risk: whether an athlete has an increased, decreased, or neutral risk of injury. The fitness-fatigue model proposed by Bannister in the 1980s has recently been rebranded and computed as the acute:chronic workload ratio. This ratio provides a measure of how much the athlete has done relative to what they have prepared for.

Typically, the acute period is quantified as the sum of load in a given week, while the chronic period is quantified as the rolling average of the previous month. Take, for example, an athlete who has run 12 miles in the past week. If this athlete has run 40 miles over the past month, then on average they have prepared for 10 miles per week. Taking the acute load of 12 miles and dividing by the average chronic load of 10 miles gives a ratio of 1.2 (12/10 = 1.2). The literature to date suggests that ratios between 0.8 and 1.3 are protective against injury. While many limitations exist, the use of 0.8-1.3 as a safe zone is popular in the sport science community and provides a nice rule of thumb for practitioners to begin monitoring training loads.

The fitness-fatigue model proposed by Bannister in the 1980s has recently been rebranded and computed as the acute:chronic workload ratio, says @DrRamseyNijem. Share on X

While we do not necessarily subscribe to a hard and fast range of 0.8-1.3, when we do suspect an athlete has taken on loads that elevate their injury risk, we adjust our training prescriptions on the court and in the weight room to manage the risk latency (i.e., the time following the initial elevation of risk). Occasionally, a conversation occurs with all stakeholders to limit the basketball load, but more frequently we adjust our weight room loading and increase our efforts on the recovery front.

The nuances of training load are beyond the scope of today’s conversation, but it’s worth noting that what we know regarding loading and injury risk is minimal, as the relationship between loading and injury is complex. I have recently completed a dissertation in this space—specifically loading in the NBA and injury risk—and while I cannot share our results, it is safe to say that a single number to quantify injury risk is closer to magical than medical.

Freelap USA: What is your approach to maximal strength levels and development with NBA-caliber players? How much absolute strength is needed for durability through a full season?

Ramsey Nijem: We love lifting heavy as much as any other strength and conditioning coaches. Given our population, however, we have to appreciate the risk involved with training heavy and the loads that our guys are already dealing with. We’ll take isometric mid-thigh pulls to get maximal force output measures and can track that over time with little concern for injury risk, as it’s isometric and the output is under the players’ voluntary control. We do not do 1-repetition maximum (RM) tests with our players; we do, however, take 3RMs of lifts such as the trap bar deadlift. Those types of lifts are a safe option, lend themselves well to the levers of NBA players, and provide a dynamic measure of maximal strength.

We also use an isokinetic squat machine to test speed-strength qualities, which is of course not maximal strength, but provides valuable insight into the athlete’s ability to generate force. We frequently will program sets of 2-5 repetitions so that we are touching above 85% of 1RM during the season, providing us with maintenance exposures so we are not losing strength in-season.

As far as how much strength is needed for durability, I’d say that if an athlete can squat 327 lbs or more, then they have the minimum absolute strength to avoid injury. Now of course I’m being sarcastic there… I cannot say precisely what level of strength is adequate for a player to make it through the grueling NBA season unscathed. While I could give a general rule of thumb—such as squat 1.5 bodyweight and deadlift 2x bodyweight—these numbers are quite arbitrary, nor do I have confidence in them as injury prevention thresholds.

When I get asked questions such as “how strong is strong enough?” I like to reply with the following question: “how can cats jump so high?” As a thought experiment, I challenge readers to research an answer. It’s a question that demonstrates how complex strength is, and therefore how difficult it is to quantify the levels of strength that would reduce risk of injury. If you do find the answer, please send your answer my way on twitter @DrRamseyNijem (shameless twitter plug).

Freelap USA: What are some of your favorite means, other than barbell and dumbbell resistance, to train your players?

Ramsey Nijem: While we are big fans of traditional barbell and dumbbell resistance training, we love to mix it up with the various implements. Our approach is focused more on the movements we desire, rather than the means, so we can expose our athletes to variety within our consistent patterning. So, in addition to the barbells and dumbbells, we use center mass bells, medicine balls, cables, suspension trainers, sleds, and the athlete’s bodyweight to change the loading parameters and motor constraints. In addition to providing novel stimuli, various training means provide variety, which aligns with my thoughts on developing resilient athletes.

An added benefit to using various means to achieve our desired outcomes is the avoidance of monotony. If we were to stick to dumbbells and barbells exclusively, our players would get bored and their training experience would take a hit. That’s not to say we consider enjoyment over the athlete’s needs, but if we can achieve our desired training goals and maintain a fun training environment, then I am all for it.

If we were to stick to #dumbbells and #barbells exclusively, our players would get bored and their training experience would take a hit, says @DrRamseyNijem. Share on X

Freelap USA: What are some common deficiencies or weak points you see in your incoming players? How can these athletes be better prepared for their time in the NBA?

Ramsey Nijem: The biggest “deficiency” we see is a general lack of strength. Many athletes are entering the NBA after just one year in college, meaning they get to us with little-to-no training background. While most of these guys are quite impressive athletically, the systems they need to maintain these qualities are absent. While I enjoy a 40+ inch vertical as much as the next guy, we are more concerned with the ability to land from that—does the athlete have the motor control to land efficiently from a biomechanical standpoint? Does the athlete have the strength—specifically eccentric strength—to absorb the landing forces? Can they turn that load around for a second jump? Can they do these things in the 4th quarter? The answers to these questions are what we seek in the weight room for our young players.

While I enjoy a 40+ inch vertical as much as the next guy, we are more concerned with the ability to land from that, says @DrRamseyNijem. Share on X

Athletes can better prepare for their time in the NBA by developing a sound movement library before they get here. Learning how to squat, hinge, lunge, bridge, push, and press with proper trunk control and mechanics are critical to building robustness, and the ability to do these things will accelerate that process. While an NBA player does not need world class powerlifting strength—nor do they need to move like a ballet dancer—the ability to load and control movement is critical to developing strength along the strength-speed continuum, which ultimately leads to stronger, faster, more durable athletes.

In addition to having a sound movement foundation, I’d also add that proper rehab of injuries from earlier in an athlete’s career would prove beneficial later in their career, as re-injury or new injuries occur. While it is tough to quantify objectively, lack of proper return to play could elevate future injury risk. The best way to achieve success in any sport is to maintain healthy status, and in turn the ability to consistently train for the sport.

Freelap USA: What is an area that you see being the future of NBA player development and physical preparation?

Ramsey Nijem: The future of NBA player development is exciting. A paucity of literature exists on the demands of the NBA game, which limits our ability to physically prepare athletes. My hope is that over the next 5-10 years, more data will come out that provides insights for practitioners to better prepare NBA players and prospects. While there are many barriers to the systematic investigation of NBA players and game demands, as the NBA sport science field progresses, collaboration and openness will begin to overcome some of the obstacles limiting our understanding.

Since you’re here…
…we have a small favor to ask. More people are reading SimpliFaster than ever, and each week we bring you compelling content from coaches, sport scientists, and physiotherapists who are devoted to building better athletes. Please take a moment to share the articles on social media, engage the authors with questions and comments below, and link to articles when appropriate if you have a blog or participate on forums of related topics. — SF



Olympic Lifting

A Case for Training Olympic Lifts in College Athletics

Blog| ByWill Ratelle

Olympic Lifting

In most sports, we not only want to move ourselves but also want to have the ability to move exterior objects—opponents, baseball bats, hockey sticks, rackets, etc. Pulling the bar in Olympic lifts not only trains the triple extension at the hip, knee, and ankle but also force production, proximally to distally into the ground with our feet, to transmit that force into the barbell to drive it up and then it reverses back onto us in the catch position. Based on this information alone, we can see the superiority of the pulling component of the Olympic lifts compared to only jumps.

And what about the catch? Is it necessary for athletes? Consider the speed it takes to drop under a heavily loaded barbell to catch a clean. Going from the pull’s tall, triple extended position to the bottom of a full squat in milliseconds must be worth looking into.

A common argument against training the Olympic lifts is that we don’t need to teach athletes to catch the bar. The detractors argue that the catch doesn’t add any extra physiological benefits to athletes who are not Olympic weightlifters. There are even studies that suggest athletes would benefit more from performing only clean and snatch pulls due to the concentric-only movement, which eliminates the need to decelerate and transition under the bar and, therefore, produces more force at the top of the pull.

The accuracy of these claims is questionable, however, because we never know how technically proficient the athletes are in the studies who perform such complex movements as the snatch and the clean and jerk. If an athlete cannot perform a technically sound clean, of course they will not benefit fully from the exercise.

Critics also argue that the primary goal of the Olympic lifts is to achieve triple extension at the hip, knee, and ankle. Why choose such complex movements to achieve that goal when we can use jumping variations and medicine ball throws, which get the same result?

The peak force of a 250 lb. clean surpasses both jumps and medicine ball throws, says @will_ratelle. Share on X

The Olympic lifts are much more than those two components. When an athlete performs Olympic lifts, consider the forces placed on them compared to trap bar jumps or 20 lb. medicine ball scoop throws. The peak force of a 250 lb. clean surpasses both the jump and the throws. One study compared the differences between a clean pull and a counter movement jump, showing peak force nearly doubled in the clean pull and time-to-peak force was 36% faster in the clean pull. Think of Newton’s 3rd law: for every action, there is an equal and opposite reaction.

Olympic Lifts and Agility

Agility, a major component of athletic competition in just about every sport, is commonly defined as the ability to accelerate, decelerate, and accelerate again. I argue that accelerating a barbell as fast as possible and then decelerating and getting under the bar and then accelerating the bar back from a full squat checks the box of training agility as well.

The acceleration and deceleration demands of #OlympicLifts check the box of agility training, says @will_ratelle. Share on X

Compare Olympic lifts to medicine ball throws. With a medicine ball throw, we completely unload the body after we project the ball into the air or wherever we throw the ball. Olympic lifts require us to exert near maximal force onto the bar and then train the motor ability to reabsorb that force on the catch, which we can do by power cleaning/snatching or full cleaning/snatching.

Don't neglect the #eccentric strength required to catch the bar during an Olympic lift, says @will_ratelle. Share on X

To take full advantage of the bar’s peak force, we must drop into a squat position to catch it. I understand that the initial “explosive” action of a pull or a jump or a throw attracts most coaches, but it’s important not to neglect the eccentric strength required to catch that bar as well.

Olympic lifts also train athletes to brace quickly. They need to brace when they begin their first pull, to keep a rigid, tight back. And they need to brace as they rack the bar as they catch. It’s a very quick transition between the second pull and the rack position.

Developing Resilience

Specificity is always a muggy topic in the strength and conditioning field because coaches have different definitions for specificity and point to different methods for specific training. But in football, hockey, and basketball, there is contact and that contact can continue to occur over and over again in a matter of seconds.

For example, a defensive end may rush the edge and make contact with an offensive tackle to find himself getting chipped by a running back a split second later and then hit again by the same offensive tackle. The defensive end must be able to brace, or they will get the wind knocked out of them. And being able to rack a clean might be one of the best ways to prepare the athlete for that level of contact. Not only because of the bracing, but also because of the amount of force needed to withstand a heavy clean or snatch.

Racking a clean may be one of the best ways to prepare athletes for high levels of contact, says @will_ratelle. Share on X

If our athletes only perform pulls, throws, and jumps (which I believe are extremely beneficial), they only expose themselves once to that high level of force. But if they include the catch, they expose themselves to that high level of force twice. Now take that 2:1 ratio and apply it over the course of a typical four-year college career. What would you rather do? All things being equal with exercise selection, which athletes will be more prepared to get hit in football or hockey? Which athletes will be more prepared to finish at the rim through contact in basketball? Which athletes will have the potential to hit the ball harder in tennis or baseball?

The evidence points to the Olympic lifts as one of the more effective modalities we can use to best prepare our athletes for competition.

Timing and Technique

Of course, it’s going to take time to teach athletes the proper technique, and there might be situations where there’s no time to go through the progressions. Maybe you have a transfer student who only has one season and has never cleaned or snatched before and the season starts four weeks after they arrive on campus.

In that situation, I get it. I spent some time as a player in the NFL and CFL, and the most we ever did was hang cleans. This was probably appropriate given that there’s such a rapid turnover of players, and it would be a logistical nightmare getting guys to clean with great technique when you may only have some guys for a week. That, combined with the fact that the athletes’ job is to play football—not train— puts a coach in a position where what’s best for the long-term may not work in the short run, and a coach does not want to hear concern from the front office.

At the University of North Dakota, however, we redshirt almost every freshman football player, and they train three days a week during the season without any other team in the weight room. It would be a disservice to them if they didn’t start learning the Olympic lifts in those initial autumn months to prepare for the winter season training. We have the time, so we do not need to rush anyone through the progressions. Because there have been so many articles written about the neurological benefits of the Olympic lifts and the development of motor skills and grip strength, etc., I wanted to touch on these other areas that are often left out of the discussion.

Getting buy-in from the athletes and the coaching staff can be challenging. Athletes get embarrassed and discouraged when they perform the lifts without good technique. I had one football player, for example, who was lagging behind when we were cleaning from the floor as a group, and he probably wasn’t ready for that. He would shoot his hips up first, causing the bar to drift away, which caused an imbalance in the barbell-skeletal system. This then caused a jerking second pull and a very inconsistent catch position.

He got frustrated with the program, so we modified his program for the day by having him complete one rep of a segmented clean deadlift, followed by a clean pull, followed by a power clean. The sequence slowed it all down and allowed him to concentrate on each piece of the lift without the complex progressions. He performed that for another couple training days until he felt competent to complete a set of all power/full cleans. This worked since we didn’t have to set him back at all, and he was able to get his work in without feeling like he was being singled out.

Final Thoughts

It makes the most sense to me that we should train our athletes to perform these movements. Sure, it may take some time for them to develop the technique and the timing of it all, but when they’re able to put it together, they can really improve their performance in their sport. Athletes who can clean heavy and snatch heavy give themselves great potential to hit harder, run faster, and jump higher. And what seems to be the least appreciated, their ability to brace through contact (eccentric strength) may give them an edge over their competition.

Since you’re here…
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