How many sets per muscle per week? A science-based guide
Volume is the number-one driver of muscle growth. Here's how many hard sets each muscle actually needs — and how to know when you're doing too little or too much.
If you want to build muscle, the single most important training variable is volume — the total number of hard sets you do for a muscle each week. Get it right and you grow. Get it wrong in either direction and you stall.
The three numbers that matter: MEV, MAV, MRV
Researchers like Dr. Mike Israetel popularised three volume landmarks that make this simple:
- MEV (Minimum Effective Volume) — the least volume that still produces growth. Below this, you maintain at best.
- MAV (Maximum Adaptive Volume) — the sweet spot where most of your gains happen.
- MRV (Maximum Recoverable Volume) — the ceiling. Past this, you accumulate more fatigue than you can recover from, and progress goes backwards.
Your job is to train inside the MAV zone most of the time, nudging volume up as you adapt, and backing off (a deload) before you crash into your MRV.
Practical weekly set ranges
For most natural, intermediate lifters, these per-muscle ranges are a reliable starting point:
- Chest, back, quads, hamstrings: 10–20 hard sets per week
- Shoulders (side delts), biceps, triceps: 12–20 sets
- Glutes, calves, abs: 8–16 sets
A "hard set" means a working set taken close to failure (roughly 1–3 reps in reserve). Warm-ups don't count. Spread the volume across two or three sessions per muscle each week rather than cramming it into one brutal day — frequency improves quality and recovery.
How to know if you've got it wrong
Too little volume looks like: no progress despite good effort, and feeling fresh but not growing. Too much looks like: nagging joint aches, sleep and mood dipping, strength sliding, and motivation falling off a cliff. Both are fixable — you just move your volume back toward the MAV zone.
The bottom line
Start near the bottom of each range, add a set or two per muscle every couple of weeks while you keep progressing, and deload when fatigue piles up. Volume is a dial, not a switch — and learning to read it is what separates people who keep growing from people who spin their wheels.