| 运动性疲劳中枢机制研究进展 |
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| 引用本文： | 蔡秋.运动性疲劳中枢机制研究进展[J].广东教育学院学报,2010(5):97-101. |
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| 作者姓名： | 蔡秋 |
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| 作者单位： | 广东第二师范学院体育系,广东广州510303 |
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| 摘 要： | 长时间运动造成大脑5-羟色氨、多巴胺、γ-氨基丁酸、氨、乙酰胆碱等含量变化是引发中枢疲劳的化学机制.同样神经生理因素在中枢疲劳发生机制中的作用日益受到重视,肌肉在进行等长收缩的过程中,运动单位放电频率随负荷持续时间呈现逐渐下降的变化趋势.中枢神经系统能够借助＂肌肉的智慧＂最大限度地维持肌肉收缩水平以及以最经济的方式维持疲劳肌肉的激活状态,起到了保护性抑制的作用.
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| 关 键 词： | 运动性疲劳 中枢机制 肌肉智慧理论假说 |
The Advances in the Research on Central Mechanism for Exercise-induced Fatigue |
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| CAI Qiu.The Advances in the Research on Central Mechanism for Exercise-induced Fatigue[J].Journal of Guangdong Education Institute,2010(5):97-101. |
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| Authors: | CAI Qiu |
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| Institution: | CAI Qiu(Department of Physical Education,Guangdong University of Education,Guangzhou,Guangdong,510303,P.R.China) |
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| Abstract: | The chemical mechanism for central nervous system could be explained as the exercise-induced concentration variation of 5-hydroxytryptophan,duobaan,γ-aminobutyric acid,ammonia,acetylcholine,and etc.in brain.However,the neurophysiological mechanism for central system fatigue also attracted more and more attention.It was revealed that the firing rate of human motor units declined with loading progression in the process of muscle isometric contraction.Depending on the muscle intelligence,the central nervous system could fully maintain the degree of muscle contraction and keep fatigued muscle in activated state in the most efficient way.An effect of protective inhibition was thus resulted. |
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| Keywords: | exercise-induced fatigue central mechanism muscle wisdom hypothesis |
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