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Effects of Hypoxia Exposure on Free Radicals after Acute Exercise
Author(s): 
Pages: 766-768
Year: Issue:  6
Journal: JOURNAL OF BEIJING SPORT UNIVERSITY

Keyword:  运动自由基低氧暴露;
Abstract: 为了观察低氧暴露对急性常氧运动后机体自由基代谢的影响.对8名男性受试者以75%V*O2max强度蹬功率自行车1 h后,分别在低氧(15.4%O2)和常氧环境中休息30 min,测定运动前、运动后即刻和运动后30 min红细胞和血清中超氧化物岐化酶(SOD)、丙二醛(MDA)和还原型谷光苷肽(GSH)的含量.结果显示:运动后即刻,红细胞MDA和血清GSH含量较运动前有显著升高,血清MDA、SOD和红细胞SOD无显著变化;运动后常氧恢复30 min,红细胞MDA还处于高水平,但GSH恢复到运动前水平.运动后低氧30 min恢复,红细胞MDA和血清GSH还是高于运动前水平,且血清GSH较运动后即刻还要高.结论:常氧运动后低氧暴露不利于体内自由基的恢复.
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