| （1.中山大学 教育学院 体育教育系，广东 广州 510275；2.武汉体育学院 体育工程与信息技术系 国家体育总局体育工程重点实验室，湖北 武汉 430079） 摘 要：为了解绿茶提取物对消除无氧性运动疲劳的作用，对比分析服用绿茶提取物和安慰剂后，优秀跆拳道和摔跤运动员无氧运动能力以及无氧性运动后BU、MDA、CK、SOD、GSH-PX等指标的变化。结果发现：在相同状态、不同运动方式和大强度无氧运动负荷下，服用绿茶提取物不仅能降低摔跤运动员血清CK活性和BU含量，而且可以显著提高跆拳道运动员的MDA含量、GSH-PX活性。结果说明：绿茶提取物能有效抑制和修复无氧运动造成的骨骼肌损伤，降低肌细胞膜通透性或减少细胞膜结构破坏，同时抑制无氧运动所造成的机体结构蛋白和功能蛋白的分解加剧，以及通过增强运动员机体抗氧化酶活性、直接或间接清除氧自由基及其代谢产物等机制，从而降低过量自由基对机体的损伤，增强机体的抗氧化能力，促进运动性疲劳的消除，增强无氧运动能力。 |
QU Ping1，2，ZHENG Wei-tao2
| （1.Department of Physical Education，Education School，SUN Yat-sen University，Guangzhou 510275，China；2.Department of Sports Engineering and Sports Information Technology，Key Laboratory of Sports Engineering of General Administration of Sport of China，Wuhan Sports University，Wuhan 430079，China） Abstract: In order to understand and study the effects of green tea extract on eliminating fatigue produced by an-aerobic exercising, by means of experiment comparison the authors analyzed the changes of the anaerobic exercis-ing capacity of excellent tae kwon do players and wrestlers after they had taken green tea extract and a placebo, and the changes of such indexes as BU, MDA, CK, SOD and GSH-PX after anaerobic exercising, and revealed that un-der the same conditions, different exercising modes and high intensity anaerobic exercise loads, taking green tea ex-tract can not only reduce the serum CK activity and BU content of the wrestlers, but also significantly increase the MDA content and GSH-PH activity of the tae kwon do players. The research results indicate that green tea extract can effectively restrain and repair skeletal muscle damages caused by anaerobic exercising, lower muscle cell mem-brane permeability or reduce cell membrane structural damages, restrain the escalation of decomposition of the body’s structural proteins and functional proteins caused anaerobic exercising, and via mechanisms such as enhanc-ing the activity of oxidation resisting enzyme in the body of athletes as well as directly or indirectly eliminating free radicals in oxygen and their metabolites, reduce the damage done by free radicals to the body, enhance the body’s oxidation resisting capacity, eliminate kinetic fatigue, and enhance the body’s anaerobic exercising capacity. |
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