The Claim
Resistance training consisting of 3 sets of 8 repetitions at 80% of one repetition maximum, performed 3 times per week for 6 weeks, leads to a statistically significant increase in quadriceps muscle thickness in untrained young men, with an average increase of 2.9% as measured by ultrasonography at 9 anatomical sites in the anterior thigh.
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.
Lifting weights (3 sets of 8 reps at 80% of your max) three times a week for six weeks can increase the thickness of thigh muscles in young men who haven't trained before by about 2.9%.
See the scientific wording
Resistance training consisting of 3 sets of 8 repetitions at 80% of one repetition maximum, performed 3 times per week for 6 weeks, leads to a statistically significant increase in quadriceps muscle thickness in untrained young men, with an average increase of 2.9% as measured by ultrasonography at 9 anatomical sites in the anterior thigh.
What the research says
1 studyStudy: Relationship Between Muscle Swelling and Hypertrophy Induced by Resistance Training
The study looked at the exact same workout plan described in the claim and found that it really did make leg muscles thicker after 6 weeks, just like 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.