Integrative responses between peripheral reflexes and the effects of exercise training

我们研究了直立应激、运动屏气和握力运动时外周反射机制的综合反应。1)直立应激时，动脉压力反射和局部固有血管调节机制共同参与了上肢和下肢血流调节。2)提示肌肉代谢反射有助于人体在动态运动中屏气时血压反应的增加。3)提示个体对肌肉代谢反射激活的心率反应存在较大差异，这些差异反映了肌肉代谢反射激活过程中心脏副交感神经张力的变化和自发性动脉压力反射控制的敏感性。

We investigated the integrative responses among peripheral reflex mechanisms during orthostatic stress, breath-holding during exercise, and handgrip exercise in humans. 1) It was suggested that both the arterial baroreflex and local intrinsic vascular regulatory mechanisms contribute to the blood flow regulation in upper and lower limbs during orthostatic stress. 2) It was suggested that the muscle metaboreflex contributes to the increase in blood pressure response seen during breath-holding during dynamic exercise in humans. 3) It was suggested that the heart rate response to activation of muscle metaboreflex varies considerably from individual to individual, and that these differences reflect changes in cardiac parasympathetic tone and the sensitivity of the spontaneous arterial baroreflex control during the activation of muscle metaboreflex.