The Claim
Different repetition ranges (3-5 RM, 13-15 RM, and 23-25 RM) during heavy-resistance squat training produce varying magnitudes of muscle hypertrophy in young men, with all protocols increasing quadriceps femoris thickness compared to no training, while thigh girth and net thigh girth show greater increases in the 13-15 RM and 23-25 RM groups.
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 men do heavy squat training with different numbers of reps, all rep ranges make their thigh muscles bigger, but higher rep ranges (like 13-15 or 23-25 reps) make their thigh size grow more than lower rep ranges.
See the scientific wording
Different repetition ranges during heavy-resistance squat training produce varying magnitudes of muscle hypertrophy in young men, with 3-5 RM, 13-15 RM, and 23-25 RM protocols all increasing quadriceps femoris thickness compared to no training, while thigh girth and net thigh girth showed greater increases in the 13-15 RM and 23-25 RM groups.
What the research says
1 studyStudy: Gross measures of exercise-induced muscular hypertrophy.
The study found that different rep ranges in squat training all built muscle size, with higher reps increasing thigh girth more, exactly matching 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.