The Claim
In young women performing resistance exercise to volitional failure, muscle thickness increases by approximately 6-9% in arms and legs after 6 weeks, with no statistically significant difference between low (30% 1RM) and high (80% 1RM) load training, indicating that load does not influence hypertrophy outcomes when training 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.
When young women lift weights until they can't anymore, their arm and leg muscles get thicker by about 6-9% after 6 weeks. It doesn't matter if they lift heavy or light weights—both work the same for muscle growth.
See the scientific wording
In young women performing resistance exercise to volitional failure, muscle thickness increases by approximately 6-9% in arms and legs after 6 weeks, with no statistically significant difference between low (30% 1RM) and high (80% 1RM) load training, suggesting load does not influence hypertrophy outcomes when training to failure.
What the research says
1 studyThe study shows that when young women lift weights until they can't anymore, their muscles grow about the same amount whether they use heavy or light weights, which matches the claim.
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.