Research
Energy balance
Resistance training frequency does not significantly affect changes in muscle mass.
Increasing resistance training frequency may not lead to greater muscle mass gains.
StrongRefutesmedium confidence
However, training frequency did not affect changes in muscle mass ( g = −0.13, I 2 = 77.29%, p = 0.34).
Why this rating
Based on systematic review and meta-analysis of 47 studies.
Source
Impact of resistance training frequency on physiological and performance adaptations: A systematic review and meta-analysis
Meiling Tao et al. · International Journal of Sports Science & Coaching · 2026
DOI 10.1177/17479541261428779
Meta-analysis
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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