The Claim
Resistance training causes statistically significant increases in muscle strength and size in untrained adults over a 10-week period, as demonstrated by improvements in leg press strength (21.7% ± 12.6%), biceps curl strength (25.4% ± 19.0%), vastus lateralis cross-sectional area (16.0% ± 8.4%), and biceps brachii cross-sectional area (17.5% ± 6.5%), with minimal changes observed in non-training controls, confirming its effectiveness for improving musculoskeletal fitness in previously inactive individuals.
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 you've never worked out before, lifting weights for 10 weeks can make your muscles stronger and bigger — especially in your legs and arms — while people who don’t train see almost no changes.
See the scientific wording
Resistance training causes increases in muscle strength and size in untrained adults, with statistically significant gains observed in leg press strength (21.7% ± 12.6%), biceps curl strength (25.4% ± 19.0%), vastus lateralis cross-sectional area (16.0% ± 8.4%), and biceps brachii cross-sectional area (17.5% ± 6.5%) over 10 weeks, compared to minimal changes in non-training controls, confirming that resistance training is effective for improving musculoskeletal fitness in previously inactive individuals.
What the research says
1 studyThe study shows that people who did resistance training got stronger and built more muscle over 10 weeks, while those who didn’t train hardly changed. This 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.