How Many Sets per Muscle Group per Week?

What Counts as a Set

In studies on muscle growth, the sets that count are the ones taken close to failure, meaning close to the last rep you could do (Baz-Valle et al., 2022). A warm-up set stops well short of that, so it doesn’t count.

You don’t need to go all the way to failure: stopping with 2 to 3 reps in reserve is enough. That’s the position of the American College of Sports Medicine (ACSM) in its 2026 recommendations, drawn from 137 research reviews. A review pools the results of several studies on the same question. The RPE calculator helps you estimate those reps in reserve.

Direct and Indirect Sets

On the bench press, the chest does most of the work and the triceps help. The set is direct for the chest and indirect for the triceps. The question is what an indirect set is worth in the weekly total.

A review of 67 studies published in 2026 by Pelland and colleagues compared three ways of counting an indirect set: as a full set, as half a set, or not at all. Counting it as half a set fits the measured gains best.

This rule is for comparing your weeks with each other; it doesn’t measure what each muscle is doing. The table below sorts the exercises used in the example that follows. It’s open to debate, and you can sort yours differently, as long as you keep the same table from week to week.

Counting a Week of 3 Full-Body Workouts

The example is made up: 3 full-body workouts, each one training the whole body, with 3 working sets per exercise. It shows the math and isn’t a program to follow. If you’re looking for one, the 3-day workout program starts from the same exercises.

• Workout A: squat, bench press, barbell row, leg curl, lateral raise, biceps curl.
• Workout B: Romanian deadlift, overhead press, lat pulldown, leg press, triceps extension.
• Workout C: squat, bench press, lat pulldown, Romanian deadlift, lateral raise, triceps extension.

For each muscle, add up the week’s direct sets, then add half of the indirect sets.

Take the triceps: 6 sets of triceps extensions, plus half of the 9 sets of bench press and overhead press, so 6 + 4.5 = 10.5.

Against the 10-set benchmark, this week leaves the chest (6) and the biceps (7.5) below it, and puts the shoulders (12) and the glutes (13.5) above it. Adding 3 sets of incline bench press to workout B, counted the same way as the bench press, would bring the chest to 9. It would also raise the triceps to 12 and the shoulders to 13.5: an exercise that works several muscles moves several totals at once.

How you count changes the result. For those same triceps, the total is 6 sets if you count only the direct ones, 10.5 with half sets, and 15 if you count every set as a full set. Before you compare your total with a number you read somewhere else, check how that number was counted.

Where These Numbers Come From

The 10-set benchmark comes from the ACSM recommendations: 10 or more sets per muscle group per week promote muscle growth in healthy adults, whether they’re beginners or trained. The ACSM doesn’t say how to count indirect sets.

Back in 2017, a review of 15 studies already showed that the more sets you do in a week, the more the muscle grows.

The range of 12 to 20 sets comes from the Baz-Valle review, which covers 7 studies of young men with at least a year of training. In it, doing more than 20 sets doesn’t build more muscle than 12 to 20 for the quads or the biceps; for the triceps, it does. This review counts every set as a full set, indirect ones included. Counted in half sets, your total comes out lower than the same program counted in full sets: keep that in mind before you compare it with this range.

Gains keep rising with the number of sets, but by less and less. The ACSM, drawing on the Pelland review, puts the point where one more set adds clearly less at around 18 to 20 sets a week.

These numbers have their limits. The ACSM writes that the exact number of sets that gives the best results can’t be established. In the Pelland review, 79% of the participants are men and the average age is 25. Neither the ACSM nor the Baz-Valle review gives a different number for each muscle: the benchmark is the same for all of them.

For Strength, 2 to 3 Heavy Sets per Exercise

For strength, the ACSM gives different numbers: 2 to 3 sets per exercise, at least 2 workouts a week, and weights of at least 80% of 1RM. Your 1RM is the heaviest weight you can lift once; the 1RM calculator gives the weight that matches 80%.

Adding sets stops paying off sooner for strength than for muscle, according to the Pelland review. A 2017 review still finds a bit more strength beyond 5 sets per exercise per week.

Spreading Your Sets Across the Week

With the same number of sets, frequency makes little difference to muscle growth. A review of 25 studies finds no clear difference between a muscle trained less often and the same muscle trained more often when the weekly total is the same. Its authors conclude that you can choose your frequency based on what you prefer.

Whether you do 3 full-body workouts or 4 workouts that alternate upper and lower body, what counts first for muscle growth is the weekly total.

Adding or Removing Sets

Start by counting what you already do, over an ordinary week, from the sets you actually did rather than the ones you had planned.

If a muscle you want to grow sits well under 10 sets, you have room: in the studies, more sets go with more muscle. Add a little at a time, for example 1 more set on one exercise, and keep everything else the same: same exercises, same way of counting. That way you can read the effect in your log. Adding sets is just one of the ways to apply progressive overload.

Your log then shows whether you’re handling those sets. At the same weight, reps that hold steady or go up from week to week suggest you can handle that number of sets. If they drop several weeks in a row, comparing two workouts helps you see when it started, and taking out the sets you added is the first thing to try. That last tip comes from practice: none of the studies cited here tested it.

Frequently Asked Questions

Why Do 4 Sets per Exercise?

None of the studies cited here says that 4 sets are better than 3 or 5. The ACSM finds that 1 set is better than none and 2 are better than 1, then advises at least 2 sets per exercise. Doing 3 or 4 sets per exercise is mostly a way to reach your weekly total with few exercises.

How Many Sets per Muscle Group per Workout?

Divide your weekly total by the number of workouts where the muscle is trained: 12 sets spread over 3 workouts is 4 sets per workout. With the same number of sets, how you split them between workouts makes little difference to muscle growth.

Are 3 Workouts a Week Enough to Build Muscle?

Yes, if they bring each muscle to around 10 sets for the week. In the example, 3 full-body workouts with 3 sets per exercise give 6 to 13.5 sets depending on the muscle. With the same number of sets, studies find no clear difference in muscle growth based on frequency.

Should You Count Warm-Up Sets?

No. Studies count sets taken close to failure, with few reps in reserve. A warm-up set stops well short of that.

Do Beginners Need Fewer Sets?

The studies cited here don’t say. The ACSM’s benchmark of 10 or more sets applies to beginners and trained lifters alike, with no number by level. The range of 12 to 20 sets was measured in men with at least a year of training: it says nothing about a beginner.