关于运动中的血液循环调控,一般认为运动受中枢神经的运动指令控制,并受到动脉压力反射、肌肉化学反射和肌肉机械反射的调节。中枢性指令运动时下丘脑运动神经元发出运动指令,同时激活心血管和肌肉运动系统,迅速撤消迷走神经作用,使心率、心输出量和血压立即升高,而对交感神经活性(SNA)则几乎无直接的影响,但这不能解释低强度运动时SNA 的增加。对“流量误差”和“血压误差”纠正的作用亦不明。肌肉化学反射当运动肌的血流量低于维持肌肉有氧代谢的阈值时,或肌乳酸释放增加时可激活 About exercise in the regulation of blood circulation, the general movement that is controlled by the central nervous system motion instruction, and by arterial pressure reflex, muscle chemical reflex and muscle mechanical reflex regulation. During central motion, the hypothalamic motor neurons issue motion instructions, activate both cardiovascular and motor systems, rapidly withdraw the vagus nerve and immediately raise heart rate, cardiac output, and blood pressure, while there is almost no change in sympathetic activity (SNA) The direct effect, however, does not explain the increase in SNA during low-intensity exercise. The effect of correcting “flow error” and “blood pressure error” is unknown. Muscle Chemistry Reflexes can be activated when the blood flow to the motor muscle is below the threshold for maintaining aerobic metabolism of the muscle or when the release of mylactic acid is increased