Ceylan Bayram, Kons Rafael L, Detanico Daniele, Šimenko Jožef
Department of Coaching Education, Faculty of Sport Sciences, Kastamonu University, Kastamonu 37150, Türkiye.
Department of Physical Education, Federal University of Bahia, Salvador 40170-110, BA, Brazil.
Biology (Basel). 2022 Jun 6;11(6):872. doi: 10.3390/biology11060872.
Background: The present study investigated highly trained male judo athletes and how a 5% body mass dehydration affects their judo-specific performance and physiological responses. Methods: Nine highly trained international-level male judo athletes who are weight-cyclers voluntarily participated in the study. The study had a controlled crossover design in nature. Athletes completed three sessions, including a familiarisation session and two experimental sessions (dehydration (DEHY) and control (CON)) with judo-specific tests, including maximal handgrip strength test (HGS), judogi grip strength tests (JGST), and the Special Judo Fitness Test (SJFT). Results: Intergroup analysis revealed a significant increase in urine specific gravity (USG) and decreased body mass following DEHY condition compared to CON. Furthermore, significant decreases were determined in HGS, JGSTs, and a number of throws in the first and third series of SJFTs, as well as higher heart rate (HR) responses in the second and third series of SJFT and worse SJFT index in DEHY condition (p < 0.05). Conclusions: We concluded that 5% dehydration of body mass led to impairment in dynamic and isometric strength in upper limbs and in judo-specific performance, as well as elevated HR during the SJFT.
本研究调查了训练有素的男性柔道运动员，以及5%体重脱水如何影响他们的柔道专项表现和生理反应。方法：九名训练有素的国际水平男性柔道运动员（他们是体重循环者）自愿参与了该研究。该研究本质上采用了对照交叉设计。运动员完成了三个环节，包括一个熟悉环节和两个实验环节（脱水（DEHY）和对照（CON）），并进行了柔道专项测试，包括最大握力测试（HGS）、柔道服握力测试（JGST）和特殊柔道体能测试（SJFT）。结果：组间分析显示，与CON相比，DEHY条件下尿比重（USG）显著升高，体重下降。此外，HGS、JGST以及SJFT第一和第三系列中的一些投掷动作显著下降，SJFT第二和第三系列中的心率（HR）反应更高，且DEHY条件下SJFT指数更差（p<0.05）。结论：我们得出结论，5%的体重脱水导致上肢动态和等长力量以及柔道专项表现受损，同时在SJFT期间心率升高。
