| 力竭运动后大鼠骨骼肌不同肌纤维线粒体钙含量和肌浆网Ca^2＋-ATP酶活性变化 |
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| 引用本文： | 王翔,魏源. 力竭运动后大鼠骨骼肌不同肌纤维线粒体钙含量和肌浆网Ca^2＋-ATP酶活性变化[J]. 浙江体育科学, 2002, 24(2): 50-52 |
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| 作者姓名： | 王翔 魏源 |
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| 作者单位： | 1. 韩山师范学院,公共体育教学部,广东,潮州,521041
2. 韩山师范学院,体育系,广东,潮州,521041 |
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| 摘 要： | 为探讨急性力竭运动后大鼠骨骼肌不同肌纤维内Ca^2 转运功能变化，测定了股四头肌红肌和白肌线粒体钙含量和肌浆网Ca^2 -ATP酶活性，结果红肌和白肌线粒体^2 含量增加，肌浆网Ca^2 -ATP酶活性降低，说明急性力竭运动后肌细胞内Ca^2 转动功能发生了改变，影响了肌肉收缩特性，从而导致了运动性疲劳的产生。
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| 关 键 词： | 力竭运动 线粒体 肌浆网 钙 Ca^2＋-ATP酶 大鼠 |
| 文章编号： | 1004-3624(2002)02-0050-03 |
| 修稿时间： | 2002-01-07 |
Changes of Ca2+ in mitochondria and Ca2+-ATPase activity in sarcoplasmic reticulum(SR) of different skeletal muscle fiber types in rat after exhaustive exercise |
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| Wang xiang ,Wei yuan. Changes of Ca2+ in mitochondria and Ca2+-ATPase activity in sarcoplasmic reticulum(SR) of different skeletal muscle fiber types in rat after exhaustive exercise[J]. Zhejiang Sport Science, 2002, 24(2): 50-52 |
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| Authors: | Wang xiang Wei yuan |
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| Affiliation: | Wang xiang 1,Wei yuan 2 |
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| Abstract: | In order to observe changes of Ca 2+ transport in different skeletal muscle types in rat after exhaustive exercise,Ca 2+ content in mitochondria and (SR)Ca 2+ ATP ase activity in SR were determined,The results showed that mitochondria Ca 2+ increased and (SR)Ca 2+ ATP ase activity decreased.This indicated that cellular calcium transport function was changed.This change may be one of the important factors causing the decrease of muscular contractive function after exhaustive exercise and might be closely related to exercise induced skeletal muscle fatigue. |
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| Keywords: | exhaustive exercise mitochondria sarcoplasmic reticulum Ca 2+ ATP ase rat |
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