摘要
本研究运用时间生物学的研究方法，就力竭性运动对大鼠脑干、间脑和端脑３个脑层次中兴奋性氨基酸类神经递质谷氨酸（Ｇｌｕ）的量变及近似昼夜节律的影响进行了研究。结果发现：（１）３个脑层次中Ｇｌｕ的含量表现出具有统计学意义的近似昼夜节律（Ｐ＜０．０１）。（２）择时运动对３个脑层次中Ｇｌｕ的含量及近似昼夜节律性产生明显的影响，其量变表现出“运动性双向量变”现象；其节律性改变表现为峰相位群体超前，中值和振幅改变。（３）为探讨“运动性双向量变”现象的生理学机制，我们提出“神经递质贮备”假说，认为“运动性双向量变”与运动前“神经递质贮备”状态有关。
By methods of chronobiology, the effects of chrono-exercise on the circadian and amounts of glutamate neuro- transmitters in Rat's three brain levels (stem brain, diencephalon and telencephalon) were studied. The results showed that both neurotransmitters demonstrated a significant circadian, and chrono-exercise could make both amounts and circadian of the neurotransmitters .change. The changes of circadian concentrated on phase lead the changes of Mesor and amplitude. The changes of amounts displayed a 'exercise-induced bi-direction changes' phenomenon. The hypothesis of 'neurotransmitter reserve' was put forward to probe the physiological mechanism of this phenomenon. There is a close correlation between this phenomenon and neurotransmitter reserve.
出处
《体育科学》
CSSCI
北大核心
2001年第2期74-77,共4页
China Sport Science
