The Claim
In young men, body weight and hamstring thickness changes were similar across resistance training groups performing different repetition ranges (3-5 RM, 13-15 RM, 23-25 RM) and did not differ from a control group after 21 squat training sessions.
What the research says
Challenges is higher
Challenge is ahead, but a single strong supporting 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 did squat workouts with different numbers of reps, their body weight and hamstring muscle size changed about the same as each other and no different from guys who didn't train at all.
See the scientific wording
Body weight and hamstring thickness changes were similar across all resistance training groups performing different repetition ranges (3-5 RM, 13-15 RM, 23-25 RM) and did not differ from control group in young men after 21 squat training sessions.
What the research says
1 studyStudy: Gross measures of exercise-induced muscular hypertrophy.
The study found that while body weight and hamstring size didn't change much with different squat routines, other leg measurements did get bigger, so the claim only tells part of the story.
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.