Volume

What It Is

The total number of challenging sets you do for a muscle group each week.

Why It Matters

Research consistently shows a dose-response relationship between weekly set volume and hypertrophy. Around four sets per muscle group per week is enough to build measurable muscle, and roughly 10 is a solid working target, with each further set buying less than the one before. Strength is the more frugal outcome: a single weekly set already produces a detectable gain, and past about four the additions stop being reliably measurable.

How you count volume matters. A set that directly targets a muscle drives more adaptation than one where that muscle is only assisting. When you tally your weekly volume, account for the overlap between exercises instead of counting every set equally.

So treat 10–20 sets as a working range rather than a number to max out. If progress stalls, more is rarely the answer: older adults in particular build muscle well at lower weekly volumes, and the returns above your working range are too thin to train through a plateau on.

• Schoenfeld, B.J. et al. (2017). Dose-response relationship between weekly resistance training volume and increases in muscle mass: A systematic review and meta-analysis. Journal of Sports Sciences. doi.org/10.1080/02640414.2016.1210197
• Radaelli, R. et al. (2024). Effects of Resistance Training Volume on Physical Function, Lean Body Mass and Lower-Body Muscle Hypertrophy and Strength in Older Adults: A Systematic Review and Network Meta-analysis of 151 Randomised Trials. Sports Medicine. doi.org/10.1007/s40279-024-02123-z
• Pelland, J.C. et al. (2025). The Resistance Training Dose Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gains. Sports Medicine. doi.org/10.1007/s40279-025-02344-w
• Currier, B.S. et al. (2026). American College of Sports Medicine Position Stand. Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of Reviews. Medicine & Science in Sports & Exercise. doi.org/10.1249/MSS.0000000000003897