Effect of Elk Velvet Antler Supplementation on the Hormonal Response to Acute and Chronic Exercise in Male and Female Rowers
| Autor: | Vicki J. Harber, Daniel G. Syrotuik, Gordon J. Bell, Kirsten L MacFadyen |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Adult
Male medicine.medical_specialty Hydrocortisone Physical Exertion Rowing Medicine (miscellaneous) Antlers Placebo Bench press Oxygen Consumption Sex Factors Internal medicine medicine Animals Humans Aerobic exercise Testosterone Orthopedics and Sports Medicine Exercise physiology Exercise Nutrition and Dietetics Tissue Extracts business.industry Deer General Medicine Hormones Endocrinology Growth Hormone Velvet antler Dietary Supplements Physical Endurance Female business Sports Hormone |
| Zdroj: | International Journal of Sport Nutrition and Exercise Metabolism. 15:366-385 |
| ISSN: | 1543-2742 1526-484X |
| DOI: | 10.1123/ijsnem.15.4.366 |
| Popis: | To examine the effects of elk velvet antler supplementation (EVA) combined with training on resting and exercise-stimulated hormonal response, male (n = 25) and female (n = 21) rowers ingested either E VA (560 mg/d) or placebo (PL) during 10 wk of training. VO2max, 2000 m rowing time, leg and bench press strength were determined before and after 5 and 10 wk of training. Serum hormone levels were measured prior to and 5 and 60 min after a simulated 2000 m rowing race. VO2max and strength increased and 2000 m times decreased similarly (P < 0.05) with training. There was no significant difference between the EVA and PL group for any hormonal response. Testosterone (males only) and growth hormone (both genders) were higher 5 min after the simulated race (P < 0.05) but returned to baseline at 60 min. Cortisol was higher 5 and 60 min compared to rest (both genders) (P < 0.05) and was higher 60 min post-exercise following 5 and 10 wk of training. It appears that 10 wk of EVA supplementation does not significantly improve rowing performance nor alter hormonal responses at rest or after acute exercise than training alone. |
| Databáze: | OpenAIRE |
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