Periodization of Skill Acquisition & Performance
Much of periodization has been focused around physical training, and how micro, meso, and macrocycles can be set up to aid in the improvement of strength, power and endurance. The periodization of skill acquisition and practice however, has yet to be examined to the same degree. In this article, I review a research paper by Farrow & Robertson (2016) and breakdown the "SPORT" framework of skill periodiation.
ONE Fighting Championship’s Elite Muay Thai Fighters: Rodtang (Left) and Jonathan Haggerty (Right)
Whether it be closed-skill sports like powerlifting and triathlon, or open-skilled sports like team sports and mixed martial arts (MMA), both physical attributes and technical proficiency in the sport-specific movements play a role in an athlete's success. Much of periodization has been focused around physical training, and how micro, meso, and macrocycles can be set up to aid in the improvement of strength, power and endurance. The periodization of skill acquisition and practice however, has yet to be examined to the same degree.
From my personal work on how to facilitate better technical improvements through periodization in powerlifting, to personal interests in MMA plus the back and forth debates on whether Conor McGregor's mixed martial arts skills will transfer over to the boxing ring; skill acquisition and performance is a big interest of mine.
Most of this series will be based on one of my recent readings: "Development of a Skill Acquisition Periodisation Framework for High-Performance Sport" by Damien Farrow and Sam Robertson (2016). For a more in-depth, fuller understanding, I highly suggest you read the article first.
In part 1 (this article), I will outline the main points made by Farrow & Robertson (2016) plus any of my own commentary and insight as it pertains to periodization. In part 2, I will directly quote the review article and expand on the points as it pertains to the sport of MMA and the implications it has on how MMA-specific skills are acquired, developed and expressed.
what is periodization?
There is a common misconception about periodization, where people believe periodization consist of complex progressions and loading schemes used only by advanced coaches. While these complex protocols may be used, periodization in the bigger scheme of things, is simply the division of training periods and the principle of cyclical training where programming variables are manipulated. Variables like intensity, volume, frequency, rest and exercise selection among others are strategically controlled and varied in order to reduce the risk of injury and maximize sport performance for individual athletes or sports teams.
Periodization takes into consideration the level, training age and genetic predispositions of an athlete in order to avoid overtraining and allow them to peak for one or several competitions. In a periodized training plan, certain time-frames exists for the manipulation of programming variables, these time frames are termed macrocycle, mesocycle and microcycle.
A macrocycle is considered the longest duration of the training cycle, usually several months in length or even a few years. For example, a quadrennial macrocycle describes a 4-year long program used to prepare an athlete or sport team for the Olympic games. A macrocycle is comprised of several mesocycles, which are a few months in length and can be defined as a prepatory, competition or transitional phase. Lastly, mesocycles are further divided into microcycleswhich deals with training on the weekly-basis.
Macrocycle (months to years)
Mesocycles (weeks to months)
Microcycles (training on the week to week basis)
Periodization serves as both a system where training is based on, and a tool to adapt future training protocols given the emerging information about the athlete or environment.
the process of skill acquisition and practice
In the review article by Farrow & Robertson (2016), the two researchers examine skill through a holistic view, considering them both "perceptual-cognitive and technical motor skill collectively given the reciprocal nature of the relationship between perception and action". They state that the current way of analyzing skills practice is very outcome-based, rather than based on the understanding of the principles and processes of which instruction, learning and practice is based on.
While there has been some research on skill periodization in the setting of rehabilitation, there has not been enough literature on skills periodization in relation to high-performance sports and how different practice methodologies can be altered throughout a program to facilitate better learning, retention and transfer. Should the number of golf swings in practice increase closer to a golf tournament? Should a quarterback practice his passes with more players or less players as they get closer to the in-season? Should MMA athletes increase their frequency of sparring as they inch closer to the fight? These are all questions Farrow & Robertson (2016) want coaches and trainers asking, and ultimately, find a (or multiple) solution(s) to.
"SPORT" Framework
The main framework proposed to examine skills periodization is the "SPORT" framework/model. "SPORT" refers to the variables of [S]pecificity, [P]rogression, [O]verload, [R]eversability and [T]edium.
Right away we can draw parallels to the physical training realm, where specificity may refer to how specific a selected exercise is to the sports movement (perhaps using Bondarchuk's exercise classification system) and where overload might refer to the progression in volume load or intensity as a % of 1RM over the span of a training cycle.
Now, let's discuss each variable in the "SPORT" framework proposed to view skill training and periodization.
Specificity
In skill training, specificity refers to how similar the movements and cognitive-behavioral demands of the skill being practiced are, compared to the skill being displayed and performed in competition. Farrow & Robertson (2016) use the term "representative learning design" or "representativeness" synonymously with specificity to refer to the "extent to which the practice prescribed reflects the behavioral demands of the task". Citing other literature, they also bring up the idea that training consists of several constraints that determine the degree of specificity for each movement or skill.
These constraints can be categorized into the following:
Individual
Environmental
Task
Individual constraints refer to the physical attributes of an athlete such as strength, power and endurance. Environmental constraints refer to the temperature, atmosphere, and weather conditions of practice and competition, while task constraints include "the type of skill being performed, rules of the game and/or the equipment used". These constraints can then be manipulated to alter the course of how skills are acquired and practiced.
Much like in physical training where highly-specific training will have their merits, including some sort of variation can help widen the base on where specific-skills are built - not every practice session has to have the same environmental conditions or the same amount of players as in competition. For example, practicing in a 2 player vs. 2 player situation or a 3v2 game may improve some measures of skills that can then be successfully transferred over to 5v5 game play. Farrow & Robertson (2016) acknowledge that there is yet to be a definitive answer on how effective these practices are, but that understanding constraints give coaches and trainers a tool by which they can better evaluate practice and prescribe skill training based on degree of specificity.
Throughout the review article, the researchers use the example of a footballer performing passes in training. Below is the example of a chart that breaks down each constraint that might be present in the practice session and its relation to competition.
"Three examples of skill constraints are provided; quantifying the prevalence of each allows for direct comparison of training with competition conditions. The difference between the two sets of conditions represents the level of training specificity." via Farrow & Robertson (2016).
This sort of systematic, quantitative breakdown of skill practice and training can be used in conjunction with a more qualitative coaches' eye to better understand skill practice specificity.
Relating to the topic specificity, I would like to bring up the utilization of ladder drills for foot speed and agility. Ladder drills have been a popular training modality for football teams, soccer teams and many other team sports, and for that exact reason, has also been on the receiving end of criticism that it does not transfer over to in-game agility and is a waste of time. In this case, the proponents of the ladder drill fail not to match the physical movements to competition settings, but the constraints of the skill themselves. In a closed environment, ladder drills do not account for task constraints such as changing direction to pass a ball vs. to receive a ball, the number of teammates to pass to, and ultimately, being reactionary to the presence of a skillful defender.
From ScienceForSport.com
All skills are composed of physical, and psycho-environmental (is that even a word?) factors. The athlete must possess the physical capacities to carry out the movement with intensity and sustainability, and they must do so under various conditions, environments and against different opponents. This has implications for how we approach closed-skill sports where the environmental and task constraints are static, compared to open-skilled sports that are reactive in nature. Can ladder drills serve as a warm up? Probably. Will ladder drills significantly improve a player's in-game agility? Probably not.
Progression
In physical training, progression usually refers to the increase in training stress to induce positive adaptation in the human body, whether it be increased endurance training mileage, increased resistance training intensity or an increased ability to tolerate higher training loads. In skill training, progression can refer to the total volume or repetitions of a particular skill being practiced, increases in mental and cognitive exertion or a higher skill specificity in practice.
The review article also highlights the concept of deliberate practice, which is defined as a "learner's capacity to develop mechanisms as a consequence of extensive training that expand their processing capacities and in turn their development". An athlete or practitioner that performs deliberate practice is thought to "seek out training situations in which a set goal exceeds their current level of performance", in other words, someone who is constantly looking to improve - which requires conscious effort (Farrow & Robertson ,2016). This all gives way to another concept termed challenge point framework which refers to how challenging a skill is in comparison to the current skill level of an athlete.
Understanding how complex and how much technicality a skill is on the hypothetical beginner/novice <--> master/expert spectrum allows coaches and trainers to more accurately prescribe drills and practices. Simply speaking, a skill being practiced shouldn't be so easy that it doesn't challenge the athlete enough for them to improve, but at the same time, shouldn't be so difficult that the athlete can't grasp or progress adequately.
Using the football pass example again, Farrow & Robertson (2016) illustrate an example of a quantifiable progression a footballer can use to improve their passing ability on the mesocyclical level (week to week).
overload
Consisting of one half of the principle of progressive overload, overload is measured by decreases or increases in internal training load (rate of perceived exertion (RPE), heart rate response) and external training load (distance covered, poundages lifted). Overload can also be thought of as training above baseline to induce adaptations that allow athletes to progress in their performance - the two concepts are intertwined and often synonymous. When it comes to skill training, Farrow & Robertson (2016) refer to the the concept of load as the cognitive effort in demand, or the volume of skills and repetition practiced like discussed in the previous section. Specifically, cognitive effort is defined as "the mental work involved in making decisions that underscore movement". Time stress, pressure from the opposing players and environment, and precise decision making all play a role in how much cognitive effort is demanded of an athlete during any given practice.
When it comes to cognitive effort, Farrow & Robertson (2016) highlight the effect of contextual interference, which shows that high cognitive effort demanding practice results in a decrease in practice performance but improves the retention of the practice skill, and ultimately the transfer to competition. The opposite is also true where practice that doesn't require a sufficient amount of cognitive effort improves practice performance (most likely due to lower complexity or a poorly prescribed practice based on the challenge point framework) but does not provide retention and transfer effects. In order to better influence skill retention and transfer, the amount of cognitive effort (load) must be altered to benefit the athlete. Specifically, the researchers point to the blocked vs. mixed approach. Here is an example:
Blocked Approach
10 field goals up close
10 field goals from a moderate distance
10 field goals far away
Mixed Approach
2 field goals up close
7 field goals from a moderate distance
4 field goals up close again
1 field goal far away
etc...
The mixed approach has shown to be more beneficial for skill retention and transfer to competition. The idea is to introduce some sort of randomness (or whatever strategy the coach sees fit) and variation to keep cognitive efforts high and to break up monotonous repetitions. Just as an athlete acclimatizes to the conditions/environment, change it. This leads to "inconsistent practice performance but superior learning of the skill" as Farrow & Robertson (2016) state. My hypothesis is that when the athletes aren't allowed to become too comfortable with the conditions and constraints of the practice, they're forced to recall certain motor patterns, shot timing, judgement of distance, etc... more frequently, leading to more adaptability and better retention. Overloading skill practice then, might mean increasing the cognitive effort demands of a practice and/or through a more difficult or random distribution of skill practice as the training cycle progresses.
Reversibility
Reversibility refers to the decrease in skill performance when practice has been reduced in frequency or withdrawn completely - very similar to the idea of residual effects of physical detraining. The concept of reversibility is important as it informs coaches and trainers which skills may or may not be retained heading into a competition or from one training session into the next. Skill reversibility can be tested using two methods - the retention test and the transfer test.
The Retention Test involves performing the skill after a period of no practice and determines the degree to which the particular skill is loss - which could be reaction time based or biomechnically based.
The Transfer Test is simply a direct measurement of whether the skill practiced has improved and successfully transferred over to real-life competition.
Factors that affect the results of these tests include the method of tapering, and how fast the practice sessions were withdrawn before the date of testing.
While it wasn't touched on in great detail, Farrow & Robertson (2016) do take the time to talk about memory consolidation and how important sleep and recovery would be for retaining the skills practiced during training.
To add onto this section, I wonder if reversibility in skill training behaves like residual effects in the physical training world. I would guess that skills that have been developed for a longer period of time (let's say for 10 years) decay more slowly than skills that have been developed recently (1-2 years for example) as those skills might be more susceptible to the reversibility effect. Many anecdotes point towards this since many highly skilled practitioners from various types of sports are able to retain their skills well-beyond old age and/or cessation of training. I have not looked into the research in this area though.
Tedium
Lastly, tedium refers to the state of "being bored due to monotony" as Farrow & Robertson (2016) state. Also related to specificity, the concept of tedium gives way to perhaps the underlying question that periodization is based off of - how much variation is needed?
As the expert in periodization and training management John Kiely says, "if [training variation] and adaptive energy is too widely distributed, gains may be excessively diluted... but if repetitive application of a unidimensional training stress [is applied], the athlete will be exposed to the negative effects of unremitting monotony". Not only is a lack of variation correlated with an increased incidence of overtraining syndromes and poor physical performance, it can also affect the psychological profile of an athlete.
A bored athlete is an unmotivated athlete - an unmotivated athlete is less likely to seek deliberate, challenging practice and therefore will not improve.
In addition to having a strategically written training plan that takes into account all the variables above such as specificity, training constraints and progressive overload, Farrow & Robertson (2016) note that the athlete should be provided some sort of control over their practice sessions as this has shown to enhance skill acquisition. Coaches should work with athletes, not on them - cause after all, coaching is both a science and an art. The value of interpersonal communication, coach-athlete chemistry, and enjoyment should be not be overlooked in the training process.
Putting it together - possible periodization techniques
Use a blocked approach (low cognitive effort) early on in the season to drill a high amount of reps, progress to a mixed approach to improve retention and transfer
Avoid programming a hard effort physical training workout and a skill training session that demands high cognitive effort on the same day (prolonged periods of high cognitive effort can lead to a decrease in skill practice performance)
Further away from competition - lower the frequency of highly representative skills and include a larger variety (less constraints matching the demands of competition)
Closer to a competition - increase the frequency of highly-specific skills and match the constraints and cognitive-behavioral demands of the sport
Skills that are less susceptible to reversibility should be practiced less often to make time to address weaknesses or other skills that need to be improved on
Some possible deload techniques : decrease skill complexity to reduce cognitive effort, decrease frequency of skill practice, decrease total weekly volume of skill practice,
Allow athletes to dictate skill training session (to a degree) further away from competition. Keep it strict closer to competition.
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Periodization 401: The Complexities and Problems of Periodization Theory
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
This fifth installment will discusses the complexities of periodization and what to take into account when reading research about periodization.
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory
Unanswered questions about periodization
So far, we've discussed the history of periodization, specifically how it came to be and why it was needed. We've also covered the physiological basis behind periodization and how training effects and variation play a role in creating a yearly and monthly plan for competitive athletes. Lastly, we dissected various periodization models and determined their defining characteristics.
On the surface, it may seem like these periodized training variables are already set in stone and backed by science, and athletes can achieve their best performance results just by following a strategically-written training program. However, there are still many unanswered questions about periodization:
Variation is needed, but HOW MUCH is needed?
What is the best periodization model for this sport ___?
What is the best periodization model for this athlete ___?
What is the best tapering/peaking method?
Does performance improve because of periodized and strategically planned variations, or simply because of a novel training stimulus?
How do you utilize periodization with your clients and athletes if you're... a high performance coach? A powerlifter? A personal trainer? A weight loss specialist? A dietician? A sports nutritionist?
Does periodization even matter to you? Should you even care?
Problems and limitations to the theory of periodization
Periodization philosophy is largely based on the fact that adaptations to physical exercise can be predicted and that it follows a determinable pattern, which can be problematic. The genotype-VO2max related Heritage Family Study as well as other studies looking at resistance training-focused interventions show several examples of how one exercise protocol can result in a wide range of responses in different populations and different subjects.
In the Heritage Family Study, an endurance training protocol was able to increase the average VO2max of the subjects by 19%. However, 5% of the participants saw no change in their VO2 values, while another 5% saw an increase of up to 50%. In a resistance training intervention, 12 weeks of a strength training program saw a 54% average increase in strength. The "non-responders" saw no increase in strength while more highly sensitive responders saw a 250% increase. 250%!!
Training adaptations are not only mediated by the training program itself (assuming adherence to the training protocols are close to 100%), but by other factors such as initial training age of the subjects, nutritional and dietary habits/protocols, recovery and restoration of the athletes (are they sleeping enough?), and exercise technique.
Initial Training Experience and Age of the Subjects
Like I alluded in the earlier articles, the initial fitness or training experience of a subject plays a factor in the results we expect to see after prescribing them a training protocol. Because novice and beginner trainees have low initial functioning performance measures, research studies focused on periodized training programs are unable to discern which periodization model works better for this population. When you're a beginner, almost everything works!
For example, in the realm of concurrent training (strength and endurance training together and their interaction), untrained individuals are usually able to increase both their strength and endurance performance with minimal interference between the 2 modalities. Trained individuals on the other hand, experience a greater interference effect when performing concurrent training: endurance training diminishes the adaptations of their resistance training and vice versa.
Nutrition and Dietary Protocols, Recovery & Restoration.
Nutrition has a large impact on training outcomes and adaptations. The fact that some strength, endurance or periodization studies don't account for dietary intake is problematic. For example, if protein intake is not controlled for in subjects of a strength training based research study, no amount of program-periodizing can come to any consistent conclusions about periodization and muscle strength or hypertrophy. I've written about nutritional periodization in detail here - check it out.
Recovery and rest obviously play a big role in the training process as well as it directly affects training performance, fatiguability of the athlete, and at the end of the day, determines how much progress they'll be able to make.
Exercise Technique
This is a variable that is often overlooked in research studies looking at the effects of periodization on strength in particular. Athletes and subjects that possess more biomechanically efficient lifting technique have a higher ceiling for strength acquisition, therefore may experience greater strength gains on any given training program. Subjects that are inexperienced, or have glaring flaws in their lifting technique are not able to reap in the full benefits of a periodized plan as their technique acts as a bottleneck for progress.
There is no quantitative way to assess lifting technique, therefore it is a variable that is hard to control in a research setting. I'm a firm believer that the execution of the lift, or of training itself, is very important in order to get the most out of a training plan.
Due to the practicality and perhaps lack of research funding, many of these variables I've discussed above are not taking into account when researchers design a study looking at different periodization models. Take these research study results with a grain of salt and remember: principles are always better than rigid, inflexible methods and systems.
The Complexity of human performance
As you can tell, the reality of human biology is very complex, much more complex of that of a car, a phone, or a computer. Despite what we know about exercise physiology and exercise science, strategic and well-planned training inputs into a human biosystem does not always ensure consistent predicted outcomes. As a consequence, performance, a multidimensional phenomenon comprised of physical, psychological and emotional factors, is hard to predict.
How much adaptation and how much progress an athlete makes from a training program can vary depending on an individual's hormonal response, genetic predispositions, motivation, stress levels, as well as transient social and environmental variables like the ones listed above. John Kiely, a respected coach and researcher, suggests that there must be great care taken when attempting to use isolated examples of athletes or periodization methods when trying to create an intervention or training program. In some cases, an athlete may have performed successfully despite a strategic periodized program, rather than because of it. This is a matter of recognizing confounding variables and avoiding falling into cognitive biases. Critical thinking and questions should be put forth during any periodized program: What are the individuals that don't see results doing differently? What confounding variables are we overlooking that have contributed to the success of an athlete or team other than the periodized program?
"Periodization Paradigms in the 21st Century: Evidence-Led Or Tradition-Driven?" by John Kiely (2012) is one of the top 5 most important articles on strength & conditioning and fitness I have ever read. Kiely shares a unique perspective on the complexities of periodization and is able to articulate points I could not have put my finger on. I highly recommend you read it when you get a chance. I have summarized some of his ideas in my article but have also added some of my own.
Another article I suggest is a 2017 review by Afonso et al, titled "Is Empirical Research on Periodization Trustworthy? A comprehensive Review of Conceptual and Methodological Issues".
Modern advanced monitoring tools such as blood lactate measurements, heart rate variability and GPS-tracking technology are also becoming increasing popular, further guiding the scientific basis behind sports and exercise planning. Despite all these advances though, human performance can still run an unpredictable course. Kiely uses the analogy of Earth's weather prediction system: although climate and space technology are very advanced, weather on the smaller scale is very complex and still unpredictable. *Related - If you've never heard of the Chaos Theory or Butterfly effect, here is some information on it.
This is not to argue that templated periodization programs do not work, rather, proper monitoring of athletes and on-going manipulation of variables should be emphasized and used in conjunction to suit the individual athlete or team. Periodization methods are not set in stone and models are not used exclusively. Some coaches may believe a certain periodization model is superior, when reality their methods are based off of a combination of different models.
With all that said, let's revisit the definition of periodization.
Previously we said: Periodization is the systematic planning of exercise and athletic training.
A more suitable and all-encompassing definition: Periodization is the systematic planning of exercise and athletic training, including the ongoing process of measuring objectives, outcomes and altering methods in the face of emerging information.
Applying these principles of periodization can be as simple, or as complex as you want, or need it to be. We'll be talking about the application of periodization in the next article.
5-Part Periodization Series Links:
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory
![Overreaching and Overtraining [Part 1 of Peaking Series]](https://images.squarespace-cdn.com/content/v1/55072bf0e4b055a8f66250e9/1501052506104-FOT7NYG35KYOVLK3J12R/crossfit.jpg)
Periodization 301: Review Of Periodization Models
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
This fourth part will cover and review various periodization models and their defining characteristics.
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory
Traditional Periodization
Popularized by sport scientists such as Matveyev and Tudor Bompa, traditional periodization (TP) was one of the first models of periodization created. TP is characterized by the concurrent development of technical, cardiovascular and strength-related abilities, whereby the initial phase is high-volume and low-intensity in nature, progressing towards a low-volume and high-intensity training protocol.
TP is often referred to as "linear periodization" because of its linear increase in intensity and linear decrease in volume over the training macrocycle. However, this name may be inappropriate when viewed on the mesocycle level, as TP programs still have undulating and wave-like characteristics. Dr. Michael Stone, a world-renowned sports physiologist also believes that TP is confused with the term "linear" because volume is sometimes erroneously calculated using the number of repetitions and sets. In order to properly calculate and monitor training stress, volume load with the consideration intensity must be used. While the set-rep scheme can remain the same, the intensity can fluctuate and change.
For example: 3 sets of 5 reps @ 70% of 1RM is vastly different from 3 sets of 5 reps @ 85% of 1RM in terms of motor unit recruitment and training stress. This common strategy in non-traditional periodization models where "heavy" and "light" days can be used, while the set-rep scheme remains the same. Volume load variation and undulation should define the periodization model and type, NOT the set-rep scheme alone.
Even "non-linear" or non-traditional periodization models possess linear characteristics when viewed on the macrocyclic-scale, progressing from a state of high-volume low-intensity training, to lower-volume higher-intensity training. However, the undulations of volume and intensity occur more frequently on the mesocycle-level, perhaps week to week, or even day to day (daily undulating periodization). Due to all these factors, the term traditional periodization is better suited. The figure below shows the manipulation of volume and intensity over several phases of a traditionally periodized training program.
Here is an example of a 12-week TP resistance training program:
Mesocycle 1 - Weeks 1-4: 5 sets of 10 reps @ 65-70% 1RM
Mesocycle 2 - Weeks 5-8: 4 sets of 6 reps @ 75-80% 1RM
Mesocycle 3 - Weeks 9-12: 3 sets of 4 reps @ 85-90% 1RM
In this example, the volume load is decreasing from each mesocycle, while the average intensity is increasing. The main characteristic of TP is that the variation of volume and intensity happen between mesocycles, with little variation occurring within each mesocycle. This goes in line with the concurrent development of physical attributes, where Tudor Bompa believes some traits are best developed together to avoid the interference effect. For example, hypertrophy-based resistance training will be paired with aerobic system development as they both improve under high-volume training. While strength and power training will be paired with anaerobic energy system development and explosive strength and power will be developed simultaneously with alactic and specific endurance work.
TP is more beneficial for novice trainees and lifters as intensity is increased at a slow and gradual pace (from one mesocycle to another), allowing for an un-rushed acquisition of structural and technical changes such as mitochondrial biogenesis and muscle hypertrophy to occur. As discussed previously in Part 201, the development of these abilities follow a sequential order, where hypertrophy and aerobic-based qualities are developed before power, anaerobic and alactic qualities. TP is an excellent model for novice trainees that have not been accustomed to high training volumes and intensities, and can prepare them for future workloads and perhaps other periodization models.
Defining Characteristics Of A Traditional Periodization Model:
A macrocycle starts off with high-volume, low-intensity training
A macrocycle ends off with low-volume, high-intensity training
Physical attributes are all developed simultaenously
Variations and undulations in volume and intensity occur from MESOCYCLE to MESOCYCLE.
What Traditional Periodization IS NOT:
Not to be confused with "linear" increases in intensity from week to week.
Example:
5x5 @ 135lbs
5x5 @ 145lbs
5x5 @ 155lbs...
This is a form a progression and is not a defining characteristic of the traditional periodization model.
Limitations of traditional periodization
While TP may be beneficial for novice trainees due to its concurrent development of physical abilities, it may be sub-optimal for intermediate or advanced athletes across a wide range of sports and performance settings. Many other factors also contribute to the need for a revision of the TP model of training, such as:
Need for contuinual progress and improved performance
Need for training stressor management in team sports
Sports that have multiple competitions or a longer competitive season
One major limitation of the TP model is that TP is optimized for climatic sports, sports that require only several performance or one performance over a short-time span. TP does not take into consideration seasonal sports or team sports that usually possess a longer competition period. An aggressive taper in the pre-season or pre-competition phase of training prepares athletes well for the beginning of the competitive season, however can be detrimental in keeping consistent performance measures over the span of the season.
TP-based programs are also hard to implement with large groups of athletes that participate in regular sport practice, competition and travelling. Seasonal team sport athletes need to maintain a base level of physical fitness during the long in-season in order to prevent detraining effects, therefore the planning of physical training must be altered during the competition period and the pre-competition or preparatory period. Since there is little to no variation in volume and intensity between microcycles/within the mesocycles, using a TP model in seasonal or team sports can be problematic. Athletes are essentially "stuck" with a specific volume and intensity scheme in any given mesocycle, therefore TP is often suggested to be inflexible for scenarios in which athletes need lower or higher intensities of work.
For example, we'll compared soccer player A and soccer player B on the same team.
Soccer player A plays on the starting line up and gets a lot of playing time.
Soccer player B is relatively new and doesn't get a lot of playing time.
These 2 athletes will need different strength and conditioning maintenance programs in between games and in the competition season because they have uneven playing times, and therefore stress their bodies different. The TP-model doesn't allow soccer player B to jump into more high intensity lifting and endurance sessions that are needed for him to maintain his fitness attributes if they are still at the beginning of a "higher volume" phase. There is a need for different periodization methods depending on the sport, and the position of each player on the team. In team-based sports whose competition season lasts 20-35 weeks, a TP model of training has shown to lead to reductions in maximal strength, muscle mass, maximal speed, as well as the ability to recover between matches (Citation 1, 2).
Even in individual sports, the increase in financial motivation and total number of competitions a year (play more games/compete in more matches = more money) calls for the revision of the TP model in order to produce more consistent results year round. The slow, monthly-undulatory nature of TP cannot achieve this.
Non-Traditional Periodization
Much like how TP is mistakenly named linear periodization, non-traditional periodization is often called undulating periodization and misguidedly named non-linear. Non-traditional periodization should technically encompass all the variations and revisions of the original TP.
Firstly, the name "non-linear" is misguided because programs can be viewed as linear or non-linear depending on the size of the scoped used to view the training program. If you step back and look at the big picture, most programs will improve performance over time. If we draw a line of best fit, does this mean every program is "linear"? Perhaps.
Secondly, all types of periodized programs are also undulatory in nature, the degree or time-scale of which undulation occurs is what defines the different models of periodization and is dependent on the type of sport, athlete as well as the time frame given to prepare.
For the sake of consistency, non-traditional periodization (NTP) will refer to any of the 4 specific subcategories: reverse periodization (RP), weekly undulating periodization (WUP), daily undulating periodization (DUP) and block periodization (BP).
Reverse Periodization
Reverse periodization (RP) is a model offered by Ian King, an Australian strength & conditioning coach, who characterized RP as initial phases of low-volume, high-intensity training, moving onto higher volume, lower-intensity training as a competition nears. This is essentially a "reverse" of the TP model.
Since training variables in a periodized program are developed in a general to specific order, using a RP model-based program would be most suitable for long aerobic endurance sports like road cycling and running, which have competition demands that are high-volume and lower-intensity in nature. The TP model also addresses the general to specific continuum, but mainly for strength and power based sports.
Figure 2 and Figure 3 outlines the difference between TP and RP in terms of preparing for an endurance event (taken from "Base Endurance: Move Forwards with Reverse Periodisation").
Defining Characteristics Of A REVERSE Periodization Model:
A macrocycle starts off with low-volume and high-intensity training
A macrocycle ends off with high-volume and low-intensity training
Limitations of Reverse Periodization
The RP model shares many of the same drawbacks as the traditional model, notably, its inflexibility for team sport athletes and non-climatic sports.
An obvious limitation to reverse periodization is that it cannot be applied to power and strength sports, where competitions are high-intensity in nature. Since it is known that volume load is a larger contributor to fatigue than intensity, strength and power-based sport performance will suffer if an athlete heads into competition in a fatigued state. Even in the case where fatigue is strategically-controlled, reducing the intensity over the training cycle will hinder the expression of strength and power and violates the principle of specificity.
In addition, RP does not take into consideration residual training effects. Research has shown that high-intensity resistance training can improve time trial performance via improvements in maximal strength and RFD in elite cyclists - one reason to keep some high-intensity sessions when close to an endurance sport competition. High-intensity training adaptations detrain at a faster rate than cumulative low-intensity training adaptations, therefore if high-intensity training is not performed as competition gets closer, performance in endurance athletes that require intermittent bursts of high-intensity may suffer.
Research comparing RP with other forms of periodization showed that although RP was less effective for strength and hypertrophy compared to TP, RP was more beneficial than TP and daily undulating periodization for increasing muscular endurance (study 1, study 2). RP may be a viable strategy for endurance-based sports but has many pitfalls when applied to strength or power-based sports.
Undulating periodization
Undulating periodization, specifically daily (DUP) and weekly (WUP) undulating periodization are models that can be characterized by a greater frequency of variation in volume and intensity, achieved on the daily and weekly level. In comparison to TP, the greater variation of training is suggested to be more optimal for experienced athletes and team sports athletes.
DUP consists of day to day variations in volume and intensity. Below is an example of a endurance-based training and a resistance-based training set up.
DUP Configuration of 1 week in a 4-Week Mesocycle (Endurance Training)
Monday: Low Intensity Steady State
Wednesday: Lactate Threshold Training
Friday: High-intensity Intervals
DUP Configuration of 1 week in a 4-Week Mesocycle (Resistance Training)
Monday: 5x8 @ 70% 1RM
Wednesday: 4x4 @ 85% 1RM
Friday: 3x1 @ 95% 1RM
WUP on the other hand, consists of week to week variations in volume and intensity.
WUP Configuration of a 4-Week Mesocycle (Endurance Training)
1st Week: Low Intensity Steady State
2nd Week: Lactate Threshold Training
3rd Week: High-Intensity Intervals
4th Week: Unloading/Deload Week
WUP Configuration of a 4-Week Mesocycle (Resistance Training)
1st Week: 5x8 @ 70% 1RM
2nd Week: 4x4 @ 85% 1RM
3rd Week: 3x1 @ 95% 1RM
4th Week: Unloading/Deload Week
A popular example of a DUP-based program would be the Westside Barbell Method, while an example of a WUP-based program would be Wendler's 531 program.
Undulating periodization-based programs have become increasing popular across all sports because of its fatigue management and within-mesocycle variations. Coaches have found that volume and intensity can undulate from day to day or week to week, while still achieving the performance and physical attribute improvements comparable to more traditionally based training programs. This flexibility is particularly evident for in-season or athletes that are in their competition-season.
If a team coach requires a hard sport practice the day of a maximal strength training session, the maximal strength session can be pushed back in replacement of a workout targeting local muscle endurance or recovery when using a DUP model of training. DUP programs are also able to stimulate different energy systems and motor units all within the same week. Being able to stimulate both low-intensity and high-intensity adaptations within the same week has important implications for retaining physical performance during long in-season competition periods, a goal TP cannot achieve.
Another example: if a particular sport requires athletes to perform anaerobic work during playing time, but not so much aerobic throughout the in-season, the flexibility of DUP and WUP allows the inclusion of recovery and light aerobic sessions to retain and maintain a base level of aerobic conditioning without being chained to the confines of a TP-based training model where training intensity is based on the mesocycle goal.
The use of heavy and light days in a training week is also considered a form of DUP and can help manage fatigue more efficiently. As Nick Winkleman says: "DUP is great for maintenance, it allows for exposure but not depletion of energy or accumulation of fatigue".
The figures below shows the manipulation of volume and intensity over several phases of a DUP/WUP-based training program and examples of the use of alternating heavy and light days within a training week.
3x/Week Training Frequency.
4x/Week Training Frequency
Defining Characteristics Of An undulating Periodization Model:
Undulations of volume and intensity occur on a week-to-week or day-to-day scale
Looking at some Research
DUP's flexibility can also be utilized in scenarios where the training environment is unplanned or unpredictable. A study by Peterson et al (2008) observed the effects of DUP versus TP on experienced, trained firefighters, whose job is usually unplanned and stressful in nature. DUP was able to accommodate for these factors by rotating endurance-days, strength-days and power-days. These different pathways were stimulated in a way where no one system was overly fatigued while progress could still be made. At the end of the 12-week intervention, the DUP group saw greater improvements in strength, power and firefighter-specific performance measures.
Block periodization
Block periodization (BP) originally called the Coupled Successive System by Yuri Verkoshansky, was developed and popularized by figures such as Verkoshansky himself, Anatoliy Bondarchuk and Vladimir Issurin. BP is considered an advanced periodization-model directed towards advanced, elite-level athletes. The basis behind BP is that elite-level athletes who are reaching the functional limits of their physical performance require highly concentrated training loads in order to further increase performance. In BP, a concentrated high-volume load "block" of training is directed towards a select group of physical capabilities, where these adaptations can be realized in the subsequent low-volume block.
BP heavily involves the concepts of cumulative and residual effects and deeply emphasizes sequential development of abilities. This is suitable for athlete already possess a solid training base and are able to handle several microcycles of very high-volume concentrated training. Although this type of training provides an optimal amount of saturation on the physical abilities that are selected, it comes at the expense of other motor abilities that are pushed to the side. For example, in a block dedicated to power training, aerobic qualities and muscular endurance might be comprised, but the BP model accounts for this by including a minimal amount of work to at least maintain these qualities.
Terms like "accumulation", "transmutation" and "realiziation" are also used in BP to describe the sequential development of phases. The accumulation phase focuses on basic abilities such as aerobic endurance and hypertrophy, the transmutation phase focuses on sport-specific abilities, while the realization phase focuses on restoration and tapering. As one can see, there can be parallels drawn between BP-based and TP-based periodization models. The figure below shows the compatibility of different motor abilities based on the dominant motor ability trained during a block - proposed by Vladmir Issurin.
Defining Characteristics Of A block Periodization Model:
The use of concentrated blocks of training loads
Deep emphasis on cumulative and residual training effects
Looking at Some Resesarch
Elite endurance athletes spend the majority of their training time utilizing low-intensity training, with small bouts of high-intensity training to peak for a competition. However, the specific organiziation of these 2 training zones and methods are still unclear. Research by García-Pallarés et al (2010) found that a BP model improved performance more than a TP model in elite level kayakers despite the BP program being 10 weeks shorter. Taking a look at the details of the study design, it should be noted that the BP program included a higher percentage of high-intensity training, therefore making it hard to conclude whether the benefits came from superior distribution of the training load, or the increased concentration of high-intensity training. When comparing different periodization models and different distribution of training, intensity and volume must be equated and accounted for.
In another study, Rønnestad et al (2012) looked at the effects of TP and BP on cycling performance in well-trained cyclist. The intervention lasted 4 weeks, while the volume and intensity of training were similarly matched between the TP and BP group. The TP group performed 2 high-intensity training sessions interspersed by high-volume, low-intensity aerobic training every week. The BP group performed a full week of high-intensity training consisting of 5 training sessions, followed by 1 high-intensity training session interspersed with low-intensity aerobic training for the subsequent 3 weeks. The results of this study showed the BP group improved their VO2max values, peak power output and power output at 2mmol/L blood lactate, while no changes occurred in the TP-based group.
Unlike the García-Pallarés et al (2010) study, the 2 groups in this study performed an identical number of high-intensity sessions, therefore the performance increase was most likely due to superior organization of training and not from an increased concentration of high-intensity sessions. Aside from these improvements however, lactate threshold and cycling economy remained unchanged in both groups, as expected by the researches due to the brief nature of the 4-week intervention. From this study, we see that a high concentration of training load allowed for a stronger training stimulus needed to improve performance variables in elite athletes. Whether that increase in VO2max has an influence on actual endurance race performance, is another question.
While not all programs will look exactly the same as the models above, many periodized programs share many of the characteristics of at least one of the models above. You'd even be surprised that some training programs deemed as "non-periodized" are infact, periodized to a degree.
Periodized vs. Non-periodized programs
A large majority of the research literature state that periodized training programs are effective across many measures of strength, power and motor performance for both men and women of varying training age and levels compared to non-periodized programs (Citations #1, #2). This should not come as a surprise as using kinesiology and sport science-based training methods allows coaches to view training adaptations in a more predictable course, and therefore they are able to adjust the subsequent training cycle to consolidate weaknesses or errors from the previous cycle. This is the overarching theme in sports planning and exercise performance.
In cases where periodized training showed no benefits compared to non-periodized training, often, the subjects had a low level of initial fitness and/or the length of the intervention was not long enough. An example of this is a study on the effects of volume and intensity periodization on strength in novice trainees. When a "non-periodized" program was volume matched with a traditional and non-traditional periodization model, strength gains on the squat and bench press were similar between groups. Baker et al (1994) concluded that over short training cycles, non-periodized strength training programs result in the same gains a periodized programs.
So what's the problem with short programs or study lengths?
Periodization models develop physical attributes in sequences and adaptations to training take time. Too short of an intervention does not allow this sequential development to happen. Future training cycles should be built upon using previous ones. It seems the benefits from a periodized program are accentuated when it is used in a longer time frame. When Stone et al (1999) analyzed 15 periodization studies, it was found that 13 studies showed improved results from a periodized program over a non-periodized program.
Rethink the term "non-periodized"
All programs, are infact, periodized to a certain degree. By now, you should know periodization simply means the structuring of training cycles. If there is no structure, there is no program. While some people may consider this semantics, it really isn't. A training program that offers random variations in training load and training variables is still a periodized program (a poorly periodized one). It can be even argued that variation and novelty itself is the key to performance increases, rather than strategically planning.
Although some coaches might claim certain models of periodization are the "best" or are superior compared to other models, it is foolish to think that a one set of rules or a rigid system can accomodate the performance demands of athletes from different ages, sports and environmental constraints.
Next time, we'll take a look at the application of these models and dive into why they're called "models" and not programs. We will also discuss the problems and limitations of periodization and what to do moving forwards.
5-Part Periodization Series Links:
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory
Periodization 201: Training variation
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
Gold-medalist Hammer-thrower Krisztián Pars.
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
This second part will cover the concepts of training variation and sequential development of physical attributes.
~1800 words; 8-16 minute read
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory
Physiological Basis Recap
In the first part of the series, we discussed the 3 paradigms used in training periodization: General adaptation syndrome by Hans Selye, Stimulus-Fatigue-Recovery-Adaptation Model, and the Fitness-Fatigue Model.
Taken from BretConteras.com Example of the SFRA (or SRA) curve in the context of muscle hypertrophy.
To recap, training volume and intensity (stimulus) has to be great enough in order to disrupt homeostasis in an athlete. Through adequate recovery, the athlete will adapt to the training, growing fitter and stronger than pre-training levels. As an athlete progresses, they begin to experience diminishing returns. A training load that once resulted in performance increases, will no longer stimulate the same degree of adaptation. To further improve performance, the stimulus has to gradually increase, in the form of higher volumes, or higher intensities (among other variables); this is the principle of progressive overload. However, some physical qualities can only be progressively overloaded to a certain degree before it is impractical to perform or may be impossible to recover from. When do we stop loading the bar with more weight? When do we stop running more miles? When do we switch exercises?
This next part will cover the concepts of training variation, and the sequential development of physical/motor abilities, 2 key concepts that training periodization is based on.
Training Variation - The Need For Varied Stimuli
We always hear trainers and coaches say: "beginners can literally do anything and they will get better". Why is this?
In young athletes or athletes with a low training age, training adaptations can be achieved with relatively small amounts of volume load and variation. A wide variety of physical attributes like strength, endurance and coordination can all be trained simultaneously with limited interference because the functional limits of those systems have not been met (low start point).
At the intermediate and especially the elite level, there is a need for more strategic planning of training stimuli in order to achieve the gains we want to see. High-intensity training required to induce anaerobic adaptations and other top-end adaptations such as speed and rate of force development in advanced-level athletes can only be performed for a certain amount of time before overtraining symptoms begin to appear. A study looking at training intensity and volume in elite endurance athletes found that adding extra sprint or high-intensity days to already-well-trained athletes resulted in little to no improvement in performance variables. This is does not mean high-intensity training doesn't work. This means extra intensification of already-intense training programs yields no improvements, the recovery costs outweigh the benefits. More is not always better. These elite endurance athletes actually performed better when varying their training stimulus by performing low to medium intensity work while strategically performing high-intensity training when and where it counts.
Training monotony, or lack of variation, can lead to increased risk of overtraining, higher risk of injury as well as poor performance. Including the right amount variation in a training program can result in better performance measures, less risk of overuse injuries and a healthier mental state for athletes and trainees. Why do I say "the right amount of variation"? Because if a training program includes too much variations, energy and time is spent on too many different physical attributes and skills, watering down the progress and improvements that could be made on the more crucial components of performance. If there is too little variation, athletes will experience the detrimental affects of training monotony.
This is the same reason why powerlifters don't lift exclusively lift in the 1-3 rep range, and why sprinters don't exclusively run 100m every practice. There are benefits to varying your training stimulus - manipulating variables like exercise selection, intensity, volume, movement patterns, etc. In layman's terms: We can't do the same thing all year-round. So what do we do when we're not practicing the competitive movements? How much variation should a training program?
This all depends on the level of athlete, type of athlete, training age, the sport itself, amongst other factors. Different periodization models have their own way of undulating variation, but they all share a common trait: physical attributes and performance measures are developed in a general to specific fashion.
The general - specific continuum
Training stimuli can be categorized into general and specific. Specific qualities are movements, mental states and physical attributes that are seen in the sport the athlete is preparing for, while general qualities are defined as variation of sport-specific attributes that build the base that allows specific qualities to flourish in the long term. Diving further into the details, general and specific qualities can also be divided into: general preparatory exercises (GPE), specific preparatory exercises (SPE), specific developmental exercises (SDE) and competitive exercises (CE). The graphic below outlines the definitions of each classification of exercises and how they play a role in training. It was created by the famous sport scientist Dr. Bondarchuk and is still used as a form of exercise classification in many elite sports today.
Dr. Anatoliy Bondarchuk's Classification of Exercises
Exercise Classification Examples
Using the Bondarchuk exercise classification system, let's create a list of exercises ranging from general to specific for:
A Competitive Powerlifter looking to improve their COMPETITION SQUAT; and
An MMA Fighter preparing for a fight.
1. POWERLIFTER - COMPETITION SQUAT
Prowler Push - Example of a SPE for a Powerlifter.
General Preparatory Exercise (GPE) - Endurance cycling (or any endurance modality)
Cycling does not imitate the competitive movement (squat), however is used as an all-purpose exercise to develop lower body endurance and promotes recovery.
Specific Preparatory Exercise (SPE) - Prowler Push
The prowler push does not imitate the squat, but uses the same muscle groups (quadriceps, glutes, core) as the squat and can be used to build general work capacity and lower body strength.
Specific Development Exercises (SDE) - Pause Squats For 3-6 reps
The pause squat mimicks the competition squat position but puts more emphasis on the bottom position of the squat. This exercise is specific but is still not considered the competitive movement itself.
Competitive Movement (CE) - Competition Squat for 1-3 reps
The competition squat is exactly what you should be training to directly improve your powerlifting squat performance. The intensity is high enough to mimick the demands of a powerlifting meet 90-100% of 1RM and the movement type and bar position is exactly what is seen in a competition.
2. MMA ATHLETE - FIGHT PREPARATION
GSP performing a barbell snatch - an exercise that can fall under SPE.
General Preparatory Exercise (GPE) - Road work/Running (or any endurance modality)
Running does not imitate the competition movements (striking/grappling/movement) however, is a great tool to build base endurance. An athlete can also use a ergo rower or bike to further promote recovery by avoiding the eccentric actions and muscle damage that comes from TOO much running.
Specific Preparatory Exercise (SPE) - Plyometric Drills (for striking) & Zercher Squats (for grappling)
Plyometric drills like depth jumps or continuous medicine ball slams/throws increase rate of force development/power as well as increases core stiffness and elastic energy transfer needed to improve striking power. While strength exercises like Zercher squats improves maximal lower body and core strength to increase grappling-specific strength.
Specific Developmental Exercises (SDE) - Heavy bag work/Isolated Striking Sparing & Grappling Dummy/BJJ Rolling
These exercises consist of pieces seen in the competitive setting (MMA fight) but developed in isolation. Striking classes or grappling sessions are where fighters hone in their skills in each martial arts discipline.
Competitive Exercise (CE) - Live Full Contact MMA Sparring (5 minute rounds)
Live full contact sparring is the closest a fighter can get to imitating the competitive event itself. Here, a fighter pieces each martial arts discipline together to make it flow and to practice any fight strategies that will be employed on fight night.
As you can see, even movements that don't resemble the competition event can be included into a training program and provide performance benefits. The Bondarchuk exercise classification system is an example of the general to specific continuum paradigm as it relates to exercise selection. The same paradigm can be applied to:
Intensity (For an Olympic lifter, sets of 10 reps @ 65% of 1RM is considered "general" while sets of 1-2 reps @ 90-100% of 1RM is considered "specific"
Volume (For a Triathlete, 1km interval sprints is considered "general" while a 20km long-distance run can be considered more "specific")
Rest Intervals (For a Bodybuilder, 5 min rests can be useful for improving strength and is considered "general", while 2 min rest times is better for maintaining a pump and increase metabolic stress - considered "specific").
etc...
Overly-specific
In a NSCA seminar on periodization, coach Nick Winkleman argued that there is an uprising of overly-specific, "functional" training methods where some coaches believe that only exercises that resembles sport-specific movements will increase improvement. An example of this is the infamous ladder drills that field-based athletes love to perform.
Some coaches mistakenly believe that doing copious amounts of agility ladder drills will improve the in-game footwork of their athletes. These predetermined agility drills create unrealistic footwork that often have a poor transfer over to the sport itself. While they should not be completely avoided, these agility drills must be carefully prescribed.
Sequential development of physical attributes
In line to the general-to-specific paradigm, the concept of periodization is also based on the fact that various physical attributes are better developed in a sequential manner. Aerobic characteristics are thought to be better developed before anaerobic ones in endurance training, while muscle hypertrophy is thought to be developed prior to strength and power acquisition.
Let's use the concept of sequential development and the general-to-specific paradigm for improving sprint performance in an Olympic sprinter:
A front squat or hip thrust can be used as a general movement to develop maximal strength, which will set the base and carry over to more specialized movements like a hang clean or trap bar jump to develop explosive strength. This explosive strength can then be used to develop more sport-specific movements such as assisted or resisted-sprint acceleration drills. This sequential development of exercise selection is suggested to be more beneficial than using acceleration drills alone, or solely using front squats or hip thrusts to improve sprint performance. Again, by performing a variation of strategically-picked general developmental exercises, we widen the base of the athlete to allow more specific qualities to flourish in the long term or on competition date.
Concluding thoughts on variation and sequential development
The time or phases spent developing each attribute in the sequential hierarchy or the amount of variation included in a training plan is what differentiates one periodization model from another. How much time should be be spent on building muscle mass if maximal power output is the goal? Should a powerlifter train the squat, bench, deadlift all the time with a high frequency (ex: Sheiko) or should they use a wide variety of accessories to target weak muscles or weak points (ex: Westside Method). Training periodization and planning has a lot of grey areas; these are ongoing debates sports scientists and coaches have on a daily basis.Read Part 101: IntroductionRead Part 201: Training Variation Read Part 202: Training Effect & PhasesRead Part 301: Review of Periodization ModelsRead Part 401: The Complexities and Problems of Periodization Theory
5-Part Periodization Series Links:
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory
Periodization 101
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
Periodization, the systematic planning of exercise and athletic training. It is one of the cornerstones of high level sports and physical performance and without it, training has no context and no direction.
This series will cover the big picture as well as dive into the small nuances of what makes periodization such an important topic to learn for any aspiring strength & conditioning coach or high performance trainer.
This first part will talk about the history of periodization and how the concept came to practice, as well as the true definition of periodization and the physiological basis behind physical training and planning.
~1900 words ; 10-15 minute read
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory
Introduction To Periodization
Many articles posted online about training periodization revolve around how to set up your training to "bust through plateaus" and hit your "biggest PRs ever". While periodization certainly does help you in doing both, many authors neglect to write about the "whys" and are inconsistent when using training terminologies. What's the difference between linear and daily undulating (DUP)? What's block training? I thought blocks were called phases? How do I linearly progress man? A lot of terms get thrown around without proper context, and unless you have some background in exercise science or an in-depth understanding of exercise physiology, it can get confusing. To play devil's advocate though, there are many concepts and training methods that share different names; usually due to that fact that different researchers and difference coaches around the world use them and have made them popular in their own training niche or sport.
Quick example: tempo training in the world of running (tempo running) consists of a more fast-paced run usually right at an athlete's lactate-threshold. However in cycling, tempo training is done below anywhere from 10-15 beats below an athlete's lactate-threshold. What seems like a small adjustment can be the difference between increased endurance, or poor recovery and overtraining. This may be a specific example, but I hope you get the idea.
Before we even get into the types of periodization and how to manipulate training variables, we must know WHY things are set up the way they are. Training terminology must be consistent and training modalities need to be contextualized.
With all that said, let's jump into it.
The History Of Periodization
How did the concept of periodization come to fruition and why was it invented?
Sport training theories and methodologies have been developed throughout human history, dating back to the 2nd century AD, notably by Roman philosopher and physician Galen and ancient Greek scientist Philostratus. In order to achieve spectacular results and performances at the ancient Olympic games, these 2 gentlemen developed their own training theories which have laid down the foundation for contemporary training periodization.
Galen created the idea of building strength without speed, developing speed without strength, then using intense exercises to combine the 2 to create the most powerful athlete possible. Philostartus on the other hand, constructed the idea compartmentalizing training protocols:
"compulsory 10-month period of purposeful training followed by 1 month of centralized preparation... prior to the Olympic Games".
Sounds an awful lot like the off-season and in-season training camps of today, right?
Let's fast forward a few thousand years.
In the 20th century, the contributions from a factory supervisor named Frederick Winslow Taylor further paved the way for modern training management. As the founder of the "Principles of Scientific Management", Frederick believed there was a systematic way to organize and plan in order to achieve the best outcomes in the most efficient manner. The appeal for the scientific method came from several different driving forces: the fact that the explanatory power of the scientific method resonated with the society, and the ingrained human attraction for simplicity, rules and automatized solutions. What originally was a paradigm developed for the engineering and automobile industry, has given way to exercise and sports performance planning.
How do we achieve the best performance possible on any given date? How do we create a training system that works for a particular group of athletes? How do we improve performance given our current resources and limitations?
These are the questions periodization attempts to answer for a variety of different sports, athletes and scenarios.
Popularization of Periodization
"All World Records Shall Be Ours!" A Soviet poster from 1948.
The concept of training periodization was not developed on a large scale until the 1950's, where former USSR teachers, coaches and scientists called for separate training periods, general and specialized phases. These phases, encompassing the training of basic athletic abilities, cardiovascular fitness and strength, were applied in a sport performance as well as physical education setting. When numerous studies on exercise physiology and human biology were published to back these concepts, sport scientist Lev P. Matveyev compiled the massive amount of data. Matveyev is to this day, recognized as the founder of the traditional theory of periodization (commonly and wrongfully called linear periodization - more on this later).
The definition of periodization
Although there have been several models of periodization developed since Matveyev's traditional model, it is widely agreed upon that the definition of periodization is the divison of training periods and the principle of cyclical training where programming variables such as intensity, volume, frequency, rest, and exercise selection among others, are strategically manipulated and varied in order to reduce the risk of injury and maximize sport performance for individual athletes or sports teams.
Periodization takes into consideration the level, training age and genetic predispositions of an athlete in order to avoid overtraining and allow them to peak for one or several competitions. In a periodized training plan, certain time-frames exists for the manipulation of programming variables, these time frames are termed macrocycle, mesocycle and microcycle.
A macrocycle is considered the longest duration of the training cycle, usually several months in length or even a few years. For example, a quadrennial macrocycle describes a 4-year long program used to prepare an athlete or sport team for the Olympic games. A macrocycle is comprised of several mesocycles, which are a few months in length and can be defined as a prepatory, competition or transitional phase. Lastly, mesocycles are further divided into microcycles which deals with training on the weekly-basis.
Macrocycle (months to years)
Mesocycles (weeks to months)
Microcycles (training on the week to week basis)
Using this definition, many popular strength programs that you and I are familiar with (Stronglifts 5x5, Texas Method, Starting Strength, etc), ARE periodized. Periodization does not imply some fancy, advanced, over-the-top program meant for elite athletes... although it can be. Periodization simply means your training plan is divided and organized in a way that makes sense and is in line with the nature of human biology and exercise physiology. The difference between a periodized program for a beginner vs. an elite athlete lies in the number of variables that are controlled for and manipulated. A weight training enthusiast can see results with the simple manipulation of intensity and volume, whereas elite athletes will need more advanced manipulation of loading schemes, exercise selection and nutritional intake in order for them to achieve those incremental gains in performance.
Periodization can be as simple, or as complex as you need it to be. That's the beauty of it.
Physiological Basis Behind Periodization
What is periodization based on? How do we determine what variables to manipulate and how to manipulate them to our advantage in terms of training adaptations?
The answer comes from the understanding human physiology and how we respond to stress. Here are 3 of the overarching principles and paradigms that make exercise and sports planning possible: General adaptation syndrome (GAS), Stimulus-Fatigue-Recovery-Adaptation (SFRA) and Fitness-Fatigue Model (F-F)
General Adaptation Syndrome (GAS)
The General Adaptation Syndrome (GAS) is a model of stress created by Hans Selye to describe and stereotype the physiological responses of the nervous and endocrine system to a stressor. GAS is categorized into 3 stages: alarm stage, resistance stage and the exhaustion stage. During the alarm stage, the body reacts to the stressor by releasing hormones in order to restore homeostasis. The resistance stage, which can also be referred to the adaptation stage, is where physiological defenses are strengthened in anticipation to future stressors. The exhauastion stage is reached when the stressor still persists and the body does not have sufficient resources to defend or repair itself.
Han Selye's General Adaptation Syndrome (GAS) illustrated.
The GAS syndrome as shown by a mouse reaction to a cat.
In relation to exercise and sports training, a disruption in homeostasis (in the form of training stress) manifests itself in the form of muscle soreness, fatigue, and a temporary decrease in performance. If the stress is maintained without proper recovery, overtraining can occur. However, if an athlete recovers adequately after a period of stress, or if the stressor is temporarily withdrawn, performance can rebound and increase beyond training levels; this is often coined the term supercompensation and is another driving principle behind periodization.
Stimulus-Fatigue-Recovery-Adaptation (SFRA)
GAS was originally created to describe a response to a general stressor, however has been critisized that it was not created specifically sports training. This resulted in a more refined concept, the SFRA model, to explain training stress and adaptations.
Taken from BretContreras.com. Example of the SFRA (or SRA) curve in the context of muscle hypertrophy.
Although similar to the GAS model, the SFRA model concept states that training stress is dependent on many factors such as intensity and volume of training. The greater the intensity or volume of the training, the greater the stressor is, resulting in a higher amount of fatigue AND adaptation. Contrastingly, if the intensity or volume of training is insufficient, fatigue will not accumulate but training adaptations will not be made! As an athlete, you must introduce yourself to a progressively larger and larger training stimulus, not too small where you won't see any benefits from it, or not too large that you're unable to recovery from it.
In layman's terms: every time you perform a training session (stimulus), you start to build up fatigue in the form of muscle soreness and lowered energy levels. As you consume enough food and get enough sleep (recovery), you are able to recover from your workout and come back fitter and stronger than before (adaptation). In the strength training realm, these concepts are commonly described as "progressive overloads" where you're looking to increase the total amount weight lifted or total number of reps lifted every workout or every week, and "rest days" where you back off on the training stress in order to give your body time to recover.
Fitness-Fatigue Model
The fitness-fatigue (F-F) model suggests that fitness and fatigue are inversely related, where strategies that maximize fitness and decrease fatigue will be the most optimal to improving sport performance. It is thought that when we introduce a training stressor, fitness adaptations and the accumulation of fatigue occur simultaneously. It is not until the stressor is withdrawn, where fatigue dissipates and fitness is increased. Unlike the previous 2 paradigms, the F-F model is able to differentiate between specific training stressors. An exercise that stresses the neuromuscular system (heavy deadlifts) may not neccessarily affect the aerobic energy system to the same degree as a 10km run would. A well-known example of the F-F model is the strategy of tapering; where training volume is dialed back in order to eliminate muscular fatigue and express maximal strength, power and endurance.
Note that all 3 of these paradigms are used simultaneously in modern day training periodization. Thanks to the access to technology we have today, the ability to monitor training variables and training stress has made these concepts more important and more effective. Even with that said, there are still people who believe periodization does not work any better than non-periodized programs or is a waste of time or practical to implement. Their beliefs holds some truths, however are still misguided at the end of the day. I will go into detail in later parts of this series.
For now, soak in the information and take a look at how your current training fits the concepts discussed. Thanks for reading!
5-Part Periodization Series Links:
Read Part 101: Introduction
Read Part 201: Training Variation
Read Part 202: Training Effect & Phases
Read Part 301: Review of Periodization Models
Read Part 401: The Complexities and Problems of Periodization Theory