The Claim
An 8-week resistance training intervention increases skeletal muscle cross-sectional area by 6 ± 4.5% in healthy young men, demonstrating that muscle hypertrophy occurs as a result of chronic resistance exercise.
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 a young, healthy man lifts weights for 8 weeks, his muscles will likely get bigger—by about 6%, give or take a little.
See the scientific wording
Resistance training for 8 weeks increases skeletal muscle cross-sectional area by 6 ± 4.5% in healthy young men, indicating muscle hypertrophy occurs with chronic resistance exercise.
What the research says
1 studyStudy: Ribosome biogenesis adaptation in resistance training-induced human skeletal muscle hypertrophy.
The study had young men lift weights for 8 weeks and found their muscles got bigger by exactly the amount the claim says — so it supports 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.