2017
Journal of Sports Sciences
Dose-Response Relationship Between Weekly Resistance Training Volume and Increases in Muscle Mass: A Systematic Review and Meta-Analysis
Studied: Pooled resistance training studies across training statuses
Across studies, higher weekly set volumes produced greater muscle growth than very low volumes — but the curve flattens. For most people, a handful of hard sets per muscle group, two to three times a week, is plenty.
