Short answer

For most trained lifters, 10 to 20 hard working sets per muscle group per week is the range that consistently produces hypertrophy in the published research. Beginners progress on substantially less — often 6 to 10 sets per muscle per week — and benefit from spending volume on getting the technique right rather than maxing out work output. Beyond roughly 20 sets, gains tend to flatten and recovery cost rises, although a minority of well-recovered lifters tolerate more. The "right" number is the lowest dose that still produces measurable progress for you.

What counts as a "set"?

This is where most online debates go off the rails. A working set for hypertrophy is generally defined as a set performed within roughly 0–4 reps of failure (RPE 6–10) on a meaningful load — usually somewhere between 30 % and 90 % of 1RM, more typically 60–80 % of 1RM.

Warm-up sets at light loads do not count. Sets stopped many reps short of failure (RPE ≤ 5) contribute little stimulus. Direct work for the target muscle counts; indirect work counts partially — for example, a barbell row gives the biceps perhaps half a set of biceps stimulus compared to a curl, although exact "fractional set" accounting is more art than science.

A clean working definition for self-tracking: count any set you took to within 3 reps of failure (RPE 7+) on an exercise where the target muscle was a primary mover.

The research consensus

The body of work most often cited is from Brad Schoenfeld and colleagues:

A 2023 narrative review and the 2023 ISSN position stand on resistance training are broadly consistent: more volume tends to produce more growth, but only up to the limit of your recovery, and the law of diminishing returns kicks in past roughly 20 sets per muscle per week for most people.

Important caveats the research makes explicit:

The MEV / MAV / MRV framework

A practical framework popularized by Dr. Mike Israetel and Renaissance Periodization uses four thresholds per muscle group:

Approximate weekly set ranges that RP commonly publishes for intermediate-trained lifters:

Muscle groupMVMEVMAVMRV
Chest4–6812–20~22
Back6–81014–22~25
Shoulders (side delts)4–6812–20~26
Quads4–6812–18~20
Hamstrings4–6610–16~18
Glutes0–448–16~20
Biceps5814–20~26
Triceps4610–14~18
Calves6812–16~20

These are starting points, not laws. Your numbers will differ based on training history, sleep, calories, stress, and how close you take each set to failure.

How to actually apply this

Step 1 — Estimate your starting volume

Look at your current week. Count direct hard sets per muscle group. Most beginners are surprised to find they are doing 4–6 sets per muscle, not 12.

Step 2 — Match volume to experience

Step 3 — Use frequency to fit the volume

Past roughly 10 sets per muscle per session, returns per set drop sharply (a phenomenon sometimes called the per-session ceiling). It is generally more productive to split a high weekly volume across two or three sessions than to do all 18 sets in one workout.

Example for 16 sets/week of back:

Step 4 — Progress volume gradually, then deload

A typical mesocycle (training block) ramps volume across 4 weeks, then resets with a deload:

This pattern is sometimes called volume progression, and is well supported by both the literature and by intermediate-to-advanced lifter experience.

When more volume is the wrong answer

Common mistakes when chasing volume

  1. Counting sets that are not hard. Sets ended at RPE 5 with form breakdown are not hard sets, they are warm-ups in disguise.
  2. Adding volume without removing junk. If you add 4 sets of curls, drop 4 sets of low-yield work elsewhere — you only have so much weekly recovery to spend.
  3. Same volume every block forever. Volume should fluctuate within a mesocycle (lower at the start, higher at the end, deload reset) and across mesocycles (some blocks emphasize volume, some emphasize intensity).
  4. Ignoring fractional sets. A heavy compound bench press gives the front delt and triceps real stimulus. Counting only "isolation sets" overstates how much direct work each muscle actually needs.

How to track sets per week

You need a way to filter your training history by muscle group and time range. A paper log can do it, but counting by hand every Sunday wears thin fast.

Count weekly volume without the spreadsheet

FitNotes X tags every exercise with primary and secondary muscle groups (from the 800-exercise library) and lets you see weekly volume per muscle without manual tallying. Pair that with the RPE field per set and your count stays honest.

Worked example: building a chest week

Suppose your target is 12 sets of chest per week (mid-MAV for most intermediates). One way to hit it across two sessions:

DayExerciseSets × RepsChest sets counted
MonBarbell bench press4 × 64
MonIncline dumbbell press3 × 103
ThuFlat dumbbell press3 × 103
ThuCable fly2 × 152
Weekly chest sets:12

Adding lateral raises on the same day adds shoulder volume but does not change the chest count; that is the kind of bookkeeping the per-muscle tag in any decent tracker should do for you automatically.

FAQ

Do junk sets exist?

Yes — sets that add fatigue without proportional stimulus. The two main causes are stopping far short of failure on accessory work and excess volume past your MRV. Both produce soreness and tiredness without growth.

Is more volume always better?

No. Volume is a tool with a cost. Past your MRV, growth stops or reverses, and injury risk climbs. Find the lowest dose that still produces measurable progress.

What about strength rather than hypertrophy?

Strength is more intensity-driven (loads ≥ 80 % 1RM). Volume still matters but the optimal weekly set count for max strength is generally lower than for max hypertrophy — roughly 5–15 hard sets per main lift per week, with most sets in the 1–6 rep range.

Can I split volume across many exercises?

Yes, and most programs do. Eight sets of chest could be 4 bench + 4 fly, or 3 bench + 3 dumbbell press + 2 cable cross — they all count toward chest volume. Some variation helps cover regions and angles of the muscle.

Should beginners do more or less than 10 sets per muscle per week?

Less. Beginners progress on 6–10 sets and benefit from spending early training time on quality reps and motor learning. Volume can scale up once linear progression slows.

Bottom line

If you are not progressing, your volume is probably either too low (under your MEV) or too high (past your MRV). Start moderate — 10–14 hard sets per muscle per week split over two sessions — measure honestly for a month, then add or subtract volume one block at a time based on what the log shows. Do not chase numbers from someone else's program; chase the lowest dose that still moves yours.

Sources

Last reviewed: May 2026. Educational content — not medical advice. Consult a qualified coach or clinician before starting a new training program.