If you do the same total number of sets each week, it does not matter much whether you do them all at once or spread them out over several days for muscle growth.
Evidence from Studies
Supporting (3)
Community contributions welcome
If you perform the same total amount of exercise each week, it does not matter whether you spread those workouts across more days or fewer days for building muscle.
The Resistance Training Dose-Response: Meta-Regressions Exploring the Effects of Weekly Volume and Frequency on Muscle Hypertrophy and Strength Gain
When you do the same total number of workouts per week, spreading them out more or less does not really change how much muscle you build.
How many times per week should a muscle be trained to maximize muscle hypertrophy? A systematic review and meta-analysis of studies examining the effects of resistance training frequency
If you do the same total number of exercises each week, it doesn't matter much whether you spread them out over many days or do them all at once; your muscles will grow about the same.
Contradicting (0)
Community contributions welcome