Periodization
Contents
Trevor L Taylor, a Miami private investor who has trained in competitive weightlifting and road cycling and is now a CrossFit athlete, brings an athlete’s discipline to systematic work, and periodization is the planning method that sits behind most serious training in those sports. Periodization divides a season into planned phases, each with its own purpose, so that hard work, easier work and peak performance arrive in a deliberate order. It is the difference between training hard every day and training on a schedule designed months in advance.
Soviet origins and Matveyev
Modern periodization grew out of Cold War sport. In an article for the sport science journal Staps1, Nick Bourne describes how a 1948 decision by the Soviet Communist Party shifted resources from mass physical culture toward the pursuit of world sporting supremacy, and how the Soviet Union went on to dominate Olympic medal tables after its debut at the 1952 Games. The theorist at the center of that effort was Lev Pavlovich Matveyev. Bourne writes that Matveyev introduced his research in 1962 and published The Fundamentals of Sports Training in 1965, after analyzing the performances and training profiles of several thousand elite athletes in easily measured events such as track and field, swimming and weightlifting. A German translation followed in 1968, but the first full English edition did not appear until 1981.
The science underneath had its own Soviet history. The physiologist Atko Viru recorded that Russian researchers built a body of work on adaptation to strong physiological stress2, from Aleksei Krestovnikov to Nikolai Yakovlev, much of which stayed unknown outside Russia and was later rediscovered by others. Viru also notes that Hans Selye’s general adaptation syndrome was declared unscientific in the Soviet Union until the late 1950s.
The classic model and its cycles
The version most coaches learned is often called the classic model. As BFS Magazine3 explains, it moves an athlete from high volume and low intensity toward low volume and high intensity as competition approaches. John Garhammer applied the scheme to strength training in a 1981 paper, using four phases of three to four weeks each. The same article points out that Matveyev himself discussed the drawbacks of the model in his own textbooks, a nuance often lost in later summaries.
Coaches describe the calendar in nested units. The training platform TrainingPeaks4 defines the macrocycle as the overall season or long term plan, the mesocycle as a focused block within it, and the microcycle as the shortest planned unit, typically one week.
The logic of the nesting is that each unit answers a different question. The macrocycle asks when the athlete must be at their best and works backward from that date. The mesocycle asks which quality to build now: general endurance, maximal strength, speed or the specific skills of the event. The microcycle asks how to arrange this week’s hard and easy days so that the athlete arrives at the next hard session able to do it well. A plan that answers all three questions in writing is much easier to review afterward than a plan that lives only in a coach’s head.
Traditional, block and undulating designs
Later theorists kept the vocabulary and changed the structure. Michael Stone and colleagues, writing in a leading strength and conditioning journal5, define periodization as a logical, phased method of manipulating fitness and recovery phases to reach specific goals while limiting overtraining and injury. They separate it from programming, which handles exercise choice, volume and intensity within each phase. In their account there are two broad models. Traditional periodization changes emphasis gradually across a season. Block periodization concentrates on one quality, or a few, in each block, with single goal blocks suited to individual sports and multiple goal blocks to team sports. Each model has strengths and weaknesses that programming can offset.
A third family, undulating periodization, varies load within the week instead of across months. A lifter might train heavy on Monday, light on Wednesday and moderate on Friday, which keeps variety high for athletes who cannot afford a long base phase. Mixed training such as CrossFit borrows from all three, while Olympic weightlifting remains a classic home of strict cycles.
What the evidence shows
The research generally favors planned variation over doing the same thing every week. A meta analysis by Williams and colleagues at the University of Alabama pooled 81 effects from 18 studies and found that periodized resistance training improved maximal strength more than non periodized training6, with a moderate effect size of 0.43. Undulating programs looked more favorable, untrained participants gained more, and longer studies with higher training frequency showed larger gains.
The theory also has serious critics. John Kiely argued in Sports Medicine7 that periodization rests on early stress research, especially Selye’s, which treated stress as mainly biological and assumed that mechanical training load directly sets the size of later fitness gains. Stress science has moved on since then, Kiely writes, so the assumptions underneath periodization deserve a fresh look. His proposal is to realign planning with current stress theory and with what progressive coaches already do, rather than to discard planning itself.
Planning a business year in blocks
The idea transfers to work with little translation. Athletes rarely fail from a single hard week; they fail from months in which every week is hard in the same way, or from a key event that arrives at the bottom of a cycle instead of the top. Desk work has the same failure modes, only quieter. A team that runs at full intensity all year has no reserve for the quarter that matters, and a person who never schedules a lighter stretch tends to take one involuntarily. An investor or operator can treat the year as a macrocycle, quarters as mesocycles with one main emphasis each, and weeks as microcycles with a deliberate mix of heavy and light days. A block devoted to research and due diligence can precede a block devoted to execution, rather than both competing every day. The evidence on variation suggests the mix matters as much as the volume, and the critics’ warning applies too: a plan drawn months ahead has to bend when new information arrives. A training log is the tool that tells you when to bend it, and deliberate practice supplies the content of each block. The point of periodization is that peaks and lulls are both chosen in advance, so neither one arrives by accident.
