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Eccentric muscle actions resulted in a greater effect size compared with concentric actions, but results did not reach statistical significance (ES difference = 0.25 ± 0.13; p = 0.076).
Practitioners should consider incorporating both eccentric and concentric training in hypertrophy programs.
StrongQualifiesmedium confidence
Results showed that eccentric muscle actions resulted in a greater effect size (ES) compared with concentric actions, but results did not reach statistical significance (ES difference = 0.25 ± 0.13; 95% confidence interval: -0.03 to 0.52; p = 0.076).
Why this rating
Based on systematic review and meta-analysis of randomized controlled trials.
Source
Hypertrophic Effects of Concentric vs. Eccentric Muscle Actions: A Systematic Review and Meta-analysis
Brad J. Schöenfeld et al. · The Journal of Strength and Conditioning Research · 2017
DOI 10.1519/jsc.0000000000001983
Meta-analysisCited 128×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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