摘要
目的:对现有的关于研究水合状态对运动员身体活动能力影响的证据进行批判性分析。方法:从多个数据库检索获取符合纳入标准的文献,随后采用唐斯和布莱克协议(Downs and Black protocol)对纳入文献进行批判性评估。结果:9篇文章符合入选标准,平均79%在方法论质量上代表高标准的研究。结论:证据表明在持续30s以上的活动中,脱水状态在身体表现中有消极作用:然而在少于15 s的持续运动中,脱水状态对身体表现并无显著影响。
Purpose： The purpose of this review was to critically analyse the cun;ent evidence investigating the effect of an athlete＇s hydration status on physical performance. Methods： A literature search of multiple databases was used to identify studies that met the inclusion criteria for this review. The included studies were then critically appraised using the Downs and Black protocol. Results： Nine articles were found to meet the inclusion criteria, with an average score of 79% for methodological quality representative of a ＂high＂ standard of research. Conclusion： The evidence suggests that dehydration has a negative impact on physical performance for activities lasting more than 30 s in duration. However dehydration was found to have no significant impact on physical performance for activities lasting less than 15 s in duration.
