The Claim
In untrained males performing knee extension resistance training to muscular failure with moderate loads (50–60% 1RM), both 2-second and 6-second repetition durations result in comparable improvements in one-repetition maximum (1RM) strength, suggesting that repetition speed does not differentially influence dynamic strength gains when sets are taken to failure.
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.
If untrained guys do leg exercises to failure using medium-heavy weights, going slow or going a bit faster on each rep gives about the same strength gains.
See the scientific wording
In untrained males performing knee extension training to failure with moderate loads (50–60% 1RM), resistance training with 2-second and 6-second repetition durations produces similar improvements in one-repetition maximum (1RM) strength, indicating that repetition speed does not differentially affect dynamic strength gains when sets are performed to muscular failure.
What the research says
1 studyThe study found that slow and medium-speed leg exercises led to similar strength gains when done to failure, which supports the idea that speed doesn’t matter for strength if you push to the limit.
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.