WHAT IS PERIODIZATION?
Periodization is the systematic planning of training in cycles with varying volume, intensity, and exercise selection over weeks and months. Instead of running the same program forever, you divide your training into phases with different focus areas.
The concept originated in Soviet sports science in the 1960s, where researchers like Lev Matveyev observed that athletes couldn't maintain peak form year-round. They discovered that systematic variation between phases of high volume (lots of training) and phases of high intensity (heavy training) produced better results than constant maximum effort.
Periodization solves a fundamental problem: the body adapts. If you run the same program for 12 weeks, it produces good progress for the first 4-6 weeks — and then you stagnate, because the body has adapted to the stimulus. By switching between phases, you force the body into continued adaptation.
Periodization is also about recovery. Hard phases followed by easier phases give the body time to rebuild and adapt — that's the principle behind supercompensation.
THREE TYPES OF PERIODIZATION
There are several ways to periodize. The three most common models each have their strengths and suit different situations.
LINEAR PERIODIZATION
The classic model. Volume starts high and gradually decreases while intensity increases. Typically over 12-16 weeks: first a phase with many reps and moderate weight (hypertrophy), then fewer reps and heavier weight (strength), and finally 1-3 reps with maximum load (peak).
UNDULATING PERIODIZATION
Varies volume and intensity within the same week. Monday: 4×8 (hypertrophy), Wednesday: 5×3 (strength), Friday: 3×12 (endurance/pump). Research shows that undulating periodization often produces better results than linear for trained lifters.
BLOCK PERIODIZATION
Concentrates one quality per block (typically 3-4 weeks). An accumulation block (high volume), a transmutation block (moderate volume, high intensity), and a realization block (low volume, peak intensity). Used by elite athletes in powerlifting.
WHO NEEDS PERIODIZATION?
In short: everyone who wants long-term progress. But the need varies with experience:
Beginners (0-12 months)
Simple linear progression is enough. Add a little more weight to the bar each week and eat sufficiently. Beginners respond to almost anything, so complex periodization is unnecessary. Progressive overload is the keyword here.
Intermediate (1-3 years)
This is where periodization starts to make sense. Weekly linear progression stops working, and you need more structured variation. Undulating periodization is typically the best approach — it keeps multiple qualities in play and prevents stagnation.
Advanced (3+ years)
Periodization is essential. Your margins for progress are small, and without structured variation you stagnate quickly. Block periodization or more advanced undulating models become relevant. This is where an experienced coach really makes a difference.
PERIODIZATION IN PRACTICE
A typical periodized program for an intermediate lifter could look like this over 12 weeks:
4×8-12 reps, moderate weight, 8-12 sets per muscle group per week. Focus on volume and technique.
4×4-6 reps, heavier weight, 6-8 sets per muscle group per week. Focus on increasing load.
3-5×1-3 reps, heavy load. Focus on testing new PRs. Low volume, high intensity.
50% of normal volume and intensity. Active recovery. Prepare the body for the next cycle.
This is a simplified model. In practice, the program is continually adjusted based on your progress, energy level, and individual needs. This is precisely where a personal trainer adds value — by reading your body and adjusting the plan in real time.
GET A PERIODIZED PROGRAM
Periodization works best when it's tailored to your goals, your level, and your daily life. Send me a message and let's design a plan that actually works for you.
By Donovan Moloney, MSc Global Health, BSc Nutrition and Health