Hughson Richard L, Shoemaker J Kevin
Schlegel-University of Waterloo Research Institute for Aging, Waterloo, ON, Canada.
School of Kinesiology and Department of Physiology, Western University, London, ON, Canada.
Auton Neurosci. 2015 Mar;188:32-5. doi: 10.1016/j.autneu.2014.10.012. Epub 2014 Oct 22.
Experimental models of physical inactivity associated with a sedentary lifestyle or extreme forms of inactivity with bed rest or spaceflight affect the balance between parasympathetic and sympathetic nervous system regulation of the cardiovascular system. Deconditioning effects are rapidly seen in the regulation of heart rate to compensate for physical modifications in blood volume and cardiac function. Reflex regulation of cardiovascular control during exercise by metaboreflex and baroreflex is altered by bed rest and spaceflight. These models of extreme inactivity provide a reference to guide physical activity requirements for optimal cardiovascular health.
与久坐不动的生活方式相关的身体不活动实验模型，或因卧床休息或太空飞行导致的极端不活动形式，会影响心血管系统副交感神经和交感神经系统调节之间的平衡。在心率调节以补偿血容量和心脏功能的生理变化方面，失适应效应很快就会显现。卧床休息和太空飞行会改变运动期间通过代谢反射和压力反射对心血管控制的反射调节。这些极端不活动的模型为指导最佳心血管健康所需的身体活动要求提供了参考。
