过度训练对大鼠心肌线粒体膜上功能性酶活性的影响  

The Influence of Overtraining on the Functional Enzyme on the Rats' Cardiac Muscle Mitochondria

作　　者：刘建华[1] 常波[2] 史冀鹏[3] 

机构地区：[1]山东潍坊学院体育系,山东潍坊261061 [2]沈阳体育学院基础部,辽宁沈阳110032 [3]河北科技师范学院体育系,河北秦皇岛066000

出　　处：《河北体育学院学报》2007年第2期86-88,共3页Journal of Hebei Sport University

摘　　要：通过建立大鼠过度训练模型,探讨了过度训练对大鼠心肌线粒体膜上功能酶活性的影响。经过6周递增负荷训练后,运动组大鼠呈过度训练状态,心肌线粒体自由基生成增多,抗氧化酶活性下降,导致线粒体膜发生脂质过氧化,Na+-K+-ATP酶和Ca2+-Mg2+-ATP酶活性下降。This research aimed to explore the influence of overtraining on the functional enzyme on the rats＇ cardiac muscle mitochondria by building the rats＇ overtraining model. After 6 weeks＇ training with gradually increasing exercises loads, training group rats showed the state of overtraining. Because of the generating of free radical and the following membrane＇ s being oxidized, training group rats cardiac mitochondrial was oxidized and the activity of Na^＋ -K^＋-ATP enzyme and Ca^2＋ -Mg^2＋ -ATP enzyme decreased.

关 键 词：过度训练 心肌线粒体 Na^+ K^+ ATP酶 Ca^2+ Mg^2+ ATP酶 

分 类 号：G804.7[文化科学—运动人体科学]