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文献报道，体位改变和深呼吸结合体表心电图观察平卧心率，深呼吸和立卧位心率差等，可视为评定植物神经对心血管系统调节作用的非创伤性检测方法〔１〕。为了进一步探讨交感和迷走神经张力变化对飞行人员心室肌细胞除极和复极的影响，作者就体位改变和深呼吸对飞行人员体表心
Reported in the literature, body position changes and deep breathing combined with body surface electrocardiogram observed heart rate, deep breathing and vertical position heart rate difference, etc., can be assessed as a non-invasive detection of autonomic nervous system cardiovascular regulation [1]. In order to further explore the impact of sympathetic and vagal tone changes on denervation and repolarization of the ventricular myocytes of pilots,