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J Strength Cond Res. 2002 May;16(2):179-83.

Effects of ginseng ingestion on growth hormone, testosterone, cortisol, and insulin-like growth factor 1 responses to acute resistance exercise.

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1
Department of Physical Education, Kyungpook National University, Taegu, 702-701, Korea.

Abstract

Ginseng, an herbal plant, has been ingested by many athletes in Oriental regions of the world in order to improve stamina and to facilitate rapid recovery from injuries. However, adequate investigation has not been conducted to examine the ergogenic effects of ginseng. To examine the effects of ginseng supplements on hormonal status following acute resistance exercise, eight male college students were randomly given water (control; CON) or 20 g of ginseng root extract (GIN) treatment immediately after a standardized exercise bout. Venous blood samples were drawn before and immediately after exercise and at 4 time points during a 2-hour recovery period. Human growth hormone, testosterone, cortisol, and insulin-like growth factor 1 (IGF-1) levels were determined by radioimmunoassay. The responses of plasma hormones following ginseng consumption were not significant between CON and GIN treatments during the 2-hour recovery period. These results do not support the use of ginseng to promote an anabolic hormonal status following resistance exercise.

PMID:
11991768
[Indexed for MEDLINE]
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