Comparison of glycerol and water hydration regimens on tennis-related performance

To compare glycerol and water hyperhydration and rehydration on tennis related skill and agility performance. Eleven male subjects completed two counter-balanced, double-blind trials. Each trial consisted of three phases: 1). hyperhydration with or without glycerol (1.0 g.kg/(-1)) over 150 min, 2)....

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Bibliographic Details
Published in:Medicine and science in sports and exercise 2003, Vol.35 (1), p.150-156
Main Authors: MAGAL, Meir, WEBSTER, Michael J, SISTRUNK, Lucille E, WHITEHEAD, Malcolm T, EVANS, Ronald K, BOYD, Joseph C
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Cross-Over Studies
Dehydration - prevention & control
Double-Blind Method
Fundamental and applied biological sciences. Psychology
Glycerol - therapeutic use
Humans
Male
Metabolisms and neurohumoral controls
Plasma Volume
Rehydration Solutions
Running - physiology
Space life sciences
Task Performance and Analysis
Tennis - physiology
Vertebrates: anatomy and physiology, studies on body, several organs or systems
Water
Water and mineral metabolism. Osmoregulation. Acidobasic balance
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Summary:To compare glycerol and water hyperhydration and rehydration on tennis related skill and agility performance. Eleven male subjects completed two counter-balanced, double-blind trials. Each trial consisted of three phases: 1). hyperhydration with or without glycerol (1.0 g.kg/(-1)) over 150 min, 2). 120 min of exercise-induced dehydration (EID), and 3) rehydration with or without glycerol (0.5 g.kg(-1)) over 90 min. After each phase, subjects performed 5- and 10-m sprint tests, a repeated-effort agility test, and tennis skill tests. Glycerol (G) hyperhydration significantly increased fluid retention by approximately 900 mL over the placebo (P) (P
ISSN:0195-9131
1530-0315
DOI:10.1097/00005768-200301000-00023