Research
Hormonal
Exercise-induced increases in GH and testosterone do not enhance strength and hypertrophy adaptations.
Practitioners should focus on intrinsic muscle mechanisms rather than hormonal changes for strength and hypertrophy.
StrongRefutesmedium confidence
exercise-induced increases in GH and testosterone availability are not necessary for and do not enhance strength and hypertrophy adaptations.
Why this rating
The claim is based on data from a training study mentioned in the abstract.
Source
Anabolic Processes in Human Skeletal Muscle: Restoring the Identities of Growth Hormone and Testosterone
Daniel W. D. West et al. · The Physician and Sportsmedicine · 2010
DOI 10.3810/psm.2010.10.1814
reviewCited 111×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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