Research
Energy balance
No significant effect of frequency was found for muscle hypertrophy.
Older adults may not experience additional muscle growth benefits from increasing resistance training frequency beyond two sessions per week.
StrongRefutesmedium confidence
For muscle hypertrophy, no significant effect of frequency was found (p = 0.67).
Why this rating
Based on meta-regression analysis of multiple studies.
Source
A meta-regression of the effects of resistance training frequency on muscular strength and hypertrophy in adults over 60 years of age
Zsuzsanna Kneffel et al. · Journal of Sports Sciences · 2020
DOI 10.1080/02640414.2020.1822595
Meta-analysisCited 27×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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