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Training & movement
AResistance Training Variables for Optimization of Muscle Hypertrophy: An Umbrella Review
Plotkin DL, Roberts MD, Haun CT, Galpin AJ · 2022 · Frontiers in Sports and Active Living
REZA evidence rating A: High confidence
Methodology
Evidence overview
Population
Umbrella review of multiple meta-analyses; healthy adults
Intervention
N/A (umbrella review of meta-analyses)
Findings
Volume is the primary driver of hypertrophy; load and frequency are secondary once volume is equated. Rest intervals have minimal impact, full range of motion is slightly favoured over partial, and training to complete failure is not required.
Outcome measures
Muscle hypertrophy
Limitations
Inherits the limitations of included meta-analyses; overlap between primary studies; most data from untrained populations.
Original source
DOI: 10.3389/fspor.2022.949021
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