The Claim
In healthy young men, endogenous testosterone sufficiency is necessary for normal increases in muscle protein synthesis during resistance exercise training, as pharmacologically induced hypogonadism reduces cumulative myofibrillar protein synthesis from 2.0 ± 0.15%·day⁻¹ to 1.50 ± 0.06%·day⁻¹ over a 6-week period despite identical resistance training stimuli.
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.
Young guys need their natural testosterone to get the full muscle-building benefits from weightlifting — if their testosterone is blocked with drugs, their muscles don’t grow as much, even if they train just as hard.
See the scientific wording
Endogenous testosterone sufficiency is required for normal increases in muscle protein synthesis during resistance exercise training in healthy young men, as pharmacologically induced hypogonadism reduces cumulative myofibrillar protein synthesis from 2.0 ± 0.15%·day⁻¹ to 1.50 ± 0.06%·day⁻¹ over 6 weeks, despite identical training stimuli.
What the research says
1 studyThe study shows that when testosterone is lowered with drugs, young men don’t build muscle as well during training, which supports the idea that normal testosterone levels are needed for muscle growth.
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.