Training volume (volume) — sets, repetitions, tonnage

Training volume is the total amount of work performed during a workout or over a specific period, measured by sets, repetitions, and weight, which is the primary driver for muscle hypertrophy.

What Exactly is Training Volume?

In its simplest form, training volume is a mathematical expression of the work performed. There are three main ways to measure it: 1. Number of Working Sets: This is the most common and practical method, popularized by experts like Dr. Mike Israetel. Here, we only count "working" sets for a given muscle group per week. A working set is one that is close enough to failure (usually with 1-4 reps in reserve, RIR 1-4) to stimulate growth. Warm-up sets are not counted. 2. Total Repetitions (Load Volume = Sets x Reps): This method accounts for the total number of repetitions. For example, 5 sets of 10 reps equal 50 reps. It's useful but doesn't account for intensity (weight). 3. Tonnage (Tonnage = Sets x Reps x Weight): This is the most precise method, multiplying sets by repetitions and by the weight used. If you perform 3 sets of 8 reps with 100 kg on squats, your tonnage is 3 x 8 x 100 = 2400 kg. This method is excellent for strength athletes but can be misleading when comparing exercises with different ranges of motion. For hypertrophy purposes, measuring the number of quality working sets per muscle group per week has become the most effective and easy-to-track metric. In this context, Dr. Mike Israetel introduced three key concepts:

• MEV (Minimum Effective Volume): The minimum volume required to maintain muscle mass, and sometimes for minimal growth in beginners.
• MAV (Maximum Adaptive Volume): The optimal volume at which you achieve the best growth. This is not a fixed number but rather a range that changes as you progress.
• MRV (Maximum Recoverable Volume): The maximum volume your body can recover from. Training above this threshold for an extended period leads to overtraining, regression, and risk of injury.

How it Works in Practice: MEV, MAV, and MRV in Numbers

Let's illustrate these concepts with a specific example for a muscle group like the chest. The numbers are approximate and vary greatly depending on experience, genetics, and lifestyle (sleep, nutrition, stress). Assume you've been training for a while and want to optimize chest growth. Your training cycle (mesocycle) of 5-6 weeks might look like this: * Week 1 (Start of Cycle - MEV): You start with 10 working sets for the chest per week. For example: * Monday: Bench Press (4 sets) + Dips (3 sets) = 7 sets * Thursday: Incline Dumbbell Press (3 sets) * The feeling is light, with almost no muscle soreness. This prepares the body for the following weeks. * Weeks 2-4 (Progression towards MAV): Each week, you increase the volume. * Week 2: 12 working sets * Week 3: 15 working sets * Week 4: 18 working sets * Within this range (12-18 sets), your MAV likely lies – the sweet spot. Workouts are challenging, you experience good muscle soreness, but you recover fully before the next session. Your strength is increasing or at least maintained. * Week 5 (Functional Overload - towards MRV): You decide to "push" the system to induce greater adaptation. You increase the volume to 20-22 working sets. Here, you are at or slightly above your MRV. * Feeling: Persistent fatigue, joints start to ache, muscle soreness doesn't fully disappear between workouts. Your strength might even start to slightly decline. You cannot sustain this volume for long. * Week 6 (Deload - Unloading): You drastically reduce the volume to a level below MEV, for example, 6 working sets with lighter weights. This allows the body not just to recover but to supercompensate, becoming stronger and bigger for the next cycle.

When and How to Use It

Managing volume is a process of periodization. You cannot train at your maximum volume (MRV) constantly. * For hypertrophy (muscle gain): Use the principle of progressive overload through volume. Start a mesocycle with volume around your MEV and increase it each week (by 1-2 sets per muscle group) until you reach your MRV. Then, take a deload week. * For strength: Volume is still important, but intensity (percentage of your one-rep max) is paramount. Here, tonnage is a better indicator. Often, the total number of repetitions is lower, but the weights are heavier (e.g., 5x3 instead of 3x10). * During a calorie deficit (cutting): Your recovery capacity is reduced. Your MRV drops significantly. The goal here is to preserve muscle mass. The best strategy is to maintain volume around your MEV, aiming to keep intensity (weights) as high as possible. Attempts to increase volume during a diet often lead to muscle loss.

Comparative Table of Volume Markers

Marker	Approximate Sets/Week	Primary Goal	Application
MEV (Minimum Effective)	~8-12	Maintaining muscle mass	Start of cycle, deload, dieting phase.
MAV (Maximum Adaptive)	~12-20	Optimal growth	Main part of a training cycle.
MRV (Maximum Recoverable)	~20+	Functional overload	The week before deload.

Common Mistakes and Misconceptions

Even with an understanding of the concepts, many trainees make mistakes that sabotage their progress.

1. Should I count warm-up sets towards my volume?
No. Warm-up sets are for preparing the muscles and nervous system but are not intense enough to cause hypertrophic adaptation. Only count working sets that are close to failure.

2. How do I calculate volume for compound exercises like squats, which work multiple muscle groups?
For multi-joint exercises, count the sets for the primary prime mover muscle group. For example, with squats, count the sets primarily for the quadriceps. The glutes and adductors receive stimulus, but it's secondary. You can count them as "half a set" (0.5) for those assisting groups.

3. Does volume from cardio or metcon workouts (like in CrossFit) count?
For hypertrophy purposes, generally no. Although high-intensity metcons create overall fatigue and tax the muscles, the stimulus is often not as specific and concentrated as in traditional strength training. However, they contribute to the overall stress on the body and can reduce your MRV.

4. Is the volume for smaller muscle groups (biceps, triceps, calves) the same as for larger ones?
No, smaller muscle groups typically require and recover from less total volume. While quads can handle 20+ sets per week, for biceps, 10-14 quality sets are often sufficient for optimal growth.

See more in the fitness guides of Sport Zona Academy.

See more in the fitness guides of Sport Zona Academy.