The Claim
Different repetition ranges in resistance training produce specific adaptations: low rep ranges (3-5 RM) maximize strength gains, high rep ranges (20-28 RM) maximize endurance and aerobic capacity, and intermediate rep ranges (3-11 RM) maximize hypertrophy.
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.
How many times you lift a weight affects what your body gets better at: lifting heavy weights a few times builds strength, lifting lighter weights many times builds endurance, and doing a middle amount builds muscle size.
See the scientific wording
Different rep ranges produce specific adaptations: low rep ranges (3-5 RM) maximize strength gains, high rep ranges (20-28 RM) maximize endurance and aerobic capacity, and intermediate rep ranges (3-11 RM) maximize hypertrophy.
What the research says
1 studyThe study found that lifting heavy weights for few reps makes you stronger, lifting lighter weights for many reps improves endurance, and middle rep ranges help build muscle size, exactly as the claim says.
Related videos
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.