← Training variables
Strong evidenceTraining variable

Training volume (sets per muscle per week)

Weekly volume, counted as hard sets per muscle, is one of the best-supported drivers of muscle growth: more sets bring more growth, with diminishing returns. Strength also rises with volume, but it levels off much sooner, so heavy, specific practice matters more there than piling on sets.

What the science says

  • More weekly sets, more muscle growth Strong evidence

    Schoenfeld and colleagues' 2017 meta-analysis found a graded dose-response: each extra weekly set was linked to a small additional gain in muscle size, and 10 or more sets per muscle per week outperformed fewer than 5. A 2026 meta-regression of 67 studies by Pelland et al. confirmed that hypertrophy keeps rising with volume.

  • Returns diminish as volume climbs Moderate evidence

    The same Pelland et al. analysis found clearly diminishing returns, so each added set buys less than the one before. Baz-Valle et al.'s 2022 systematic review suggested about 12–20 weekly sets per muscle as a sensible range for trained young men, with no consistent extra benefit above it for most muscles studied.

  • Strength responds to volume, but plateaus sooner Moderate evidence

    Ralston et al.'s 2017 meta-analysis found that 10 or more weekly sets produced modestly greater strength gains than fewer than 5. Pelland et al. found the curve for strength flattens much earlier than for hypertrophy, so beginners and strength-focused lifters can make good progress on moderate volumes.

How to apply it

Count hard sets (taken within about 0–3 reps of failure) per muscle per week, start in the middle of the range, and add sets only if progress stalls and you are recovering well.

Beginner, per muscle per week6–10 hard sets
Intermediate/advanced, per muscle per week10–20 hard sets
Strength focus (main lift)4–10 hard sets/week, mostly heavy
Adding volume+1–2 sets/muscle per week, for 3–6 weeks, then deload
Per session cap (practical)About 6–10 hard sets per muscle; split larger weekly volumes across sessions

Who should be careful

For healthy adults, raising volume too fast is a common cause of excessive soreness and overuse pain; increase gradually and reduce volume if joints ache or performance drops for more than a week or two. Anyone with an injury, joint condition or medical issue should have a qualified professional set their training load.

Frequently asked questions

How many sets per muscle per week should I do?

Most people grow well on about 10–20 hard sets per muscle per week; beginners can start around 6–10. Meta-analyses show more sets bring more growth, but with diminishing returns.

Is more volume always better?

No. Gains keep rising with volume, but each extra set adds less, and Baz-Valle et al. found no consistent extra benefit above about 20 weekly sets for most muscles. Add sets only if you are recovering well and progress has stalled.

Do I need high volume to get stronger?

Not much. Strength improves with more sets, but the curve flattens much earlier than for muscle size, so moderate volume with heavy, specific practice covers most strength gains.

Scientific references

More training variables