Impact of GH administration on athletic performance in healthy young adults: A systematic review and meta-analysis of placebo-controlled trials
Research output: Contribution to journal › Review › Research › peer-review
OBJECTIVE: Illicit use of growth hormone (GH) as a performance-enhancing drug among athletes is prevalent, although the evidence of such effects in healthy, young subjects is sparse. We therefore performed a meta-analysis of published studies on the effect of GH administration on body composition, substrate metabolism, and athletic performance in healthy, young subjects.
DESIGN: The English-language based databases PubMed, EMBASE, and Cochrane Central Register of Controlled Trials were searched, and eligible articles were reviewed in accordance with the PRISMA guidelines. Fifty-four potentially relevant articles were retrieved of which 11 were included in this analysis comprising 254 subjects.
RESULTS: Administration of GH significantly increased lean body mass (p<0.01) and decreased fat mass (p<0.01). In addition, GH increased the exercising levels of glycerol (p=0.01) and free fatty acids (p<0.01), but did not alter the respiratory quotient during exercise (p=0.30). GH significantly increased anaerobic exercise capacity (p<0.01) in the only study which investigated this, but did not over weeks to months improve muscle strength (p=0.36) or maximum oxygen uptake (p=0.89).
CONCLUSION: GH administration elicits significant changes in body composition, but does not increase either muscle strength or aerobic exercise capacity in healthy, young subjects.
Original language | English |
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Journal | Growth Hormone & I G F Research |
Volume | 34 |
Pages (from-to) | 38-44 |
ISSN | 1096-6374 |
DOIs | |
Publication status | Published - 2017 |
- Adult, Athletic Performance, Body Composition/drug effects, Controlled Clinical Trials as Topic/statistics & numerical data, Doping in Sports/methods, Energy Metabolism/drug effects, Exercise/physiology, Health, Human Growth Hormone/pharmacology, Humans, Muscle Strength/drug effects, Placebos, Young Adult
Research areas
ID: 195046589