The influence of recovery duration on high-intensity exercise performance after oral creatine supplementation

被引:35
作者
Cooke, WH [1 ]
Barnes, WS [1 ]
机构
[1] TEXAS A&M UNIV,NEUROMUSCULAR RES UNIT,DEPT HLTH & KINESIOL,COLLEGE STN,TX 77843
来源
CANADIAN JOURNAL OF APPLIED PHYSIOLOGY-REVUE CANADIENNE DE PHYSIOLOGIE APPLIQUEE | 1997年 / 22卷 / 05期
关键词
ergogenic aids; cycle ergometry; short-term fatigue;
D O I
10.1139/h97-029
中图分类号
Q4 [生理学];
学科分类号
071003 ;
摘要
The purpose of this study was to determine the effects of creatine supplementation on the ability to reproduce and maintain a high percentage of peak power output during the second of two bouts of high-intensity cycle sprinting following four different recovery intervals. Eighty healthy, active male subjects weve randomly assigned to one of two groups (creatine or placebo) and one of four recovery intervals (30, 60, 90, ar 120 s). Two maximal cycle ergometer sprints, separated by the assigned recovery interval were performed before and after a 5-day supplementation protocol in which 20 g/day of creatine (plus 4 g/day glucose) or 24 g/day glucose placebo were ingested by subjects from creatine and placebo groups, respectively. Maximal peak power output (PP) and the absolute time to fatigue (TTF) were compared pre- versus postsupplementation. No significant group interactions were noted in this study. Specifically, creatine supplementation had no effect an subjects' ability to reproduce or maintain a high percentage of PP during the second bout of exercise.
引用
收藏
页码:454 / 467
页数:14
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