One of the most common training questions is: how much is enough? Too little volume and you do not provide enough stimulus for growth. Too much and you accumulate more fatigue than you can recover from. Here is what the research says about optimal volume — and how to apply it to your programme.
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What Does the Research Say?
The most robust evidence suggests that 10–20 working sets per muscle group per week produces optimal hypertrophy for most intermediate lifters. Below 10 sets per week, the growth stimulus is suboptimal. Above 20 sets per week, most lifters begin to accumulate fatigue faster than they can recover, leading to diminishing returns or regression.
For beginners, less volume (5–10 sets per muscle group per week) is often sufficient — their lower work capacity means more volume quickly exceeds recovery capacity. For advanced lifters, higher volumes (up to 25+ sets for some muscle groups in short peaks) may be tolerated, but should be periodised carefully.
What Counts as a “Working Set”?
A working set is a set performed with sufficient effort to provide a meaningful training stimulus — typically within 1–3 reps of failure (RPE 7–9). Warm-up sets do not count toward your weekly volume. See our guide to RPE and effort to ensure your sets are appropriately challenging.
Volume Recommendations by Muscle Group
- Quads/hamstrings/glutes: 10–20 sets (large muscles, high recovery capacity)
- Back (lats + upper back combined): 10–20 sets per week
- Chest: 10–20 sets per week
- Shoulders: 8–16 sets per week (partly trained by pressing movements)
- Biceps: 8–14 sets per week (also trained in rows and pull-ups)
- Triceps: 8–14 sets per week (also trained in pressing movements)
- Calves: 8–16 sets per week (slow-twitch dominant, high frequency works well)
How to Distribute Volume Across the Week
Spreading volume across at least 2 sessions per week per muscle group maximises muscle protein synthesis compared to doing all volume in one session. A 4-day upper/lower split naturally distributes volume well. This is one reason why the upper/lower split is recommended for intermediate lifters over body-part splits.
How to Progress Volume Over Time
Start at the lower end of recommended ranges and add 1–2 sets per muscle group per week across a training block. After 4–6 weeks, take a deload week to let fatigue dissipate, then reassess. This mesocycle approach produces consistent progress without burnout. Apply progressive overload by increasing sets, reps, or load each cycle.
Frequently Asked Questions
Does more volume always mean more growth?
No. Volume follows a dose-response curve — more volume produces more growth up to a point, then returns diminish, and eventually accumulating fatigue causes regression. More is not always better; optimal is better.
Should I use the same volume for all muscle groups?
No. Prioritise lagging muscle groups with higher volume and maintain others with lower volume. If you want bigger arms, add more bicep and tricep sets. If your upper chest is lacking, add more incline pressing. Customise volume allocation to your goals.
What if I do not have time for 20 sets per muscle group per week?
Do less — it is better to train consistently with 8 sets per week than to attempt 20 and burn out or miss sessions. Even 6 working sets per muscle group per week produces meaningful muscle growth in beginners and intermediate lifters. Zerxus builds a programme that fits your available training time.
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Zerxus Coaching Team
Certified Strength & Conditioning Coaches
The Zerxus coaching team combines qualified personal trainers, certified strength coaches, and evidence-based sports science to build programmes that actually work. Every article is grounded in peer-reviewed research and practical coaching experience — no fads, no shortcuts.