【摘要】 选取10名男子柔道运动员为研究对象（年龄为19．0±2．91岁），采用双盲法，在冬训期间口服含或不含支链氢基酸（BCAA）特制饮料近8周后，观测其唾液睾酮、大腿等速肌力及肝功等3项指标的变化情况。分析结果认为：1）对于力量对抗性项目运动员，在大运动量训练期间，适量补充BCAA一定时期后，可使唾液睾酮含量更明显地增加，血清GPT活性明显下降，并可很好地维持大腿肌肉力量。2）在一定时期内合理补充BCAA的方法安全有效，对肝脏功能无不良影响，在改善机体睾酮水平、提高机体的适应能力及消除疲劳能力方面，有明显的应用价值。另外，建议就BCAA补充的最佳剂量及其对中枢神经递质和下丘脑神经激素的影响机制做进一步的研究。更多还原

【Abstract】 Ten male Judo players (aged 19. 9 ± 2. 91 yr ) served as the subjects of this study,who were asked to orally take BCAA or placebo for eight weeks. Observation was made on the changes of salivary testosterone, leg isokinemic force and the indexes of liver function. The results indicated: (1)for players of weight resistence events,proper supplement of BCAA for a certain period of time could lead to a more significant increase of the content of salivary testosterone,a significant decrease of the activity of serum GPT,and a maintance of leg force; (2)proper supplement of BCAA within a period of time was safe,effective,and unharmful to liver function,which,therefore,can be applied to the improvement of the level of testosterone and the improvement of the capacity of body adaption and fatigue elimination. Further studies on the optimal dose of supplement of BCAA and its effect on central nervous transmitter and subthalamus nerve hormone were suggested.更多还原