The Claim
In resistance-trained individuals, both low-load (20-25 repetitions to failure) and high-load (3-5 repetitions to failure) resistance exercise training produce comparable increases in muscle thickness (7.4% at mid-thigh and 8.5% at distal thigh), indicating similar hypertrophic adaptations when training to volitional 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.
Whether you lift heavy weights for a few reps or lighter weights for more reps until you can't do any more, both ways make your thigh muscles grow about the same amount in people who already work out.
See the scientific wording
Both low-load (20-25 repetitions to failure) and high-load (3-5 repetitions to failure) resistance exercise training produce comparable increases in muscle thickness (7.4% at mid-thigh and 8.5% at distal thigh) in resistance-trained individuals, indicating similar hypertrophic adaptations regardless of loading intensity when training to volitional failure.
What the research says
1 studyThe study shows that lifting light weights many times and lifting heavy weights a few times both make muscles grow just as much when you push until you can't do any more, which matches exactly what the claim says.
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.