The Claim
In resistance-trained men, high-volume resistance training (10–12 repetitions at approximately 70% of one-repetition maximum with 1-minute rest intervals) induces a greater acute growth hormone response during early training (week 3) compared to high-intensity resistance training (3–5 repetitions at approximately 90% of one-repetition maximum with 3-minute rest intervals), but this difference is no longer evident by week 10.
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.
In guys who lift weights regularly, doing more reps with lighter weights and short breaks gives a bigger boost in growth hormone early on (by week 3) than doing fewer reps with heavier weights and longer breaks—but by week 10, that difference goes away.
See the scientific wording
In resistance-trained men, high-volume resistance training (10–12RM at ~70% 1RM with 1-minute rest) elicits a greater acute growth hormone response during early training (week 3) compared to high-intensity training (3–5RM at ~90% 1RM with 3-minute rest), but this difference diminishes by week 10.
What the research says
1 studyThe study found that lighter weights with more reps caused a bigger spike in growth hormone early on, but that effect got smaller after 10 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.