The Claim
In trained individuals under volume-load matched conditions, longer eccentric phase durations during resistance training are associated with similar or greater maximal strength gains compared to shorter eccentric phase durations, with a moderate effect size (Hedge’s g = 0.33).
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Among experienced weightlifters who perform the same total training volume, longer lowering phases in resistance exercises are linked to equal or greater increases in maximum strength compared to shorter lowering phases.
See the scientific wording
Longer eccentric phase durations during resistance training are associated with similar or greater maximal strength gains in trained individuals compared to shorter phases, with a moderate effect size (Hedge’s g = 0.33) under volume-load matched conditions, suggesting eccentric duration may be a key variable for strength adaptation in experienced lifters.
When you lower a weight slowly, the muscle fibers stretch under heavy load for longer, which forces more muscle cells to work hard and triggers changes in their internal structure, making them stronger over time.
What the research says
1 studyFor experienced weightlifters, slowly lowering the weight during exercises like squats can build just as much strength—or even a bit more—as doing it quickly, as long as the total effort stays the same. This study found that slower lowering works just as well or better.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.