Combined Effects of Caloric Restriction and Branched-Chain Amino Acid Supplementation on Body Composition and Exercise Performance in Elite Wrestlers

Twenty-five competitive wrestlers restricted their caloric intake (28 kcal.kg-1.day-1) for 19 days, using a hypocaloric control (hC, n = 6), hypocaloric high-protein (hHP, n = 7), hypocaloric high-branched-chain amino acid (hBCAA, n = 6), hypocaloric low-protein (hLP, n = 6) diet to determine the ef...

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Bibliographic Details
Published in:International journal of sports medicine 1997, Vol.18 (1), p.47-55
Main Authors: Mourier, A., Bigard, A. X., Kerviler, E. de, Roger, B., Legrand, H., Guezennec, C. Y.
Format: Article
Language:English
Subjects:
Amino Acids, Branched-Chain - pharmacology
Biological and medical sciences
Body Composition
Body Weight
Energy Intake
Exercise
Feeding. Feeding behavior
Food, Fortified
Fundamental and applied biological sciences. Psychology
Humans
Magnetic Resonance Imaging
Male
Nutrition
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Vertebrates: body movement. Posture. Locomotion. Flight. Swimming. Physical exercise. Rest. Sports
Wrestling
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Summary:Twenty-five competitive wrestlers restricted their caloric intake (28 kcal.kg-1.day-1) for 19 days, using a hypocaloric control (hC, n = 6), hypocaloric high-protein (hHP, n = 7), hypocaloric high-branched-chain amino acid (hBCAA, n = 6), hypocaloric low-protein (hLP, n = 6) diet to determine the effects of caloric restriction on body composition and performances versus control diet (C, n = 6). Anthropometric parameters (weight, percent body fat) and adipose tissue (AT) distribution measured by magnetic resonance imaging (MRI) obtained before and after diet, were compared. A significant highest body weight loss (-4 kg, p < 0.05) and decrease in the percent of body fat (-17.3%, p < 0.05) were observed for subjects of the hBCAA group. Subjects of the hBCAA group exhibited a significant reduction (-34.4%, p < 0.05) in abdominal visceral adipose tissue (VAT). There was no change in aerobic (VO2max) (p > 0.75) and anaerobic capacities (Wingate test) (p > 0.81), and in muscular strength (p > 0.82). We conclude that under our experimental conditions, the combination of moderate energy restriction and BCAA supplementation induced significant and preferential losses of VAT, and allowed maintainance of a high level of performance.
ISSN:0172-4622
1439-3964
DOI:10.1055/s-2007-972594