摘要
研究目的:对12名备战北京奥运会的国家射箭队运动员脑电信号的最大李雅普诺夫指数、近似熵与复杂度等3个非线性特征参数进行分析,为研究大脑的高级功能提供了一条新的途径。结果表明:国家射箭队运动员的脑电最大李雅普诺夫指数、复杂度和近似熵等3个非线性特征参数不存在显著男、女性别差异;L-Z复杂度可敏感地反映出运动员是否处于中枢疲劳状态,近似熵可较敏感地反映出国家射箭队优秀运动员在不同的两个阶段中训练负荷的变化。虽然被试运动员的数量有限,但脑电最大李雅普诺夫指数、近似熵和复杂度等3个非线性特征参数与中枢神经疲劳程度之间存在着一定相关关系,对于分析和监测射箭运动员中枢神经系统疲劳程度是一种非常有效的方法,可作为反映其中枢神经系统机能的定性指标。
The aim of this study is to provide a new method for researching the cerebral function and based on the analysis of the three nonlinear parameters （maximum Lyapunov exponents, approximate entropy and Lempel-Ziv complexity of EEG） to 12 national archers preparing for the 29^th Beijing Olympic Games. It is revealed that there are not remarkable differences between male and female in the three nonlinear parameters （maximum Lyapunov exponents, approximate entropy and Lempel-Ziv complexity of EEG） referring to national archers ＇. Lempel- Ziv complexity can sensitively reflect whether archers are in the state of central fatigue. Approximate entropy can be more sensitive to reflect the change of outstanding archers＂ training load in two different stages. The number of archers in this experiment is limited, but it has a certain relationship between central fatigue degree and the three nonlinear parameters （maximum Lyapunov exponents, approximate entropy and Lempel-Ziv complexity of EEG）. It is a very effective method to analyze and monitor archers＂ central fatigue degree, and can be used as qualitative indexes to reflect the central nervous system function.
出处
《体育科学》
CSSCI
北大核心
2010年第2期64-69,82,共7页
China Sport Science
基金
国家体育总局奥运科研攻关与科技服务项目(07070)
