运动习惯对高血压患者心率变异性及晨起波动的影响分析

目的:通过对有和无运动习惯的原发性高血压患者心率变异性指标的定量分析及对比研究,探讨运动习惯对原发性高血压患者自主神经功能的影响。方法:分别测量27例有运动习惯(运动组)和33例无运动习惯(非运动组)的原发性高血压患者24h总体时域及频域指标及晨起3点至8点每个整点的低频指标(LF)、高频指标(HF)和高/低频比值(LF/HF),并进行对比研究。结果:运动组LF、LF/HF显著低于非运动组,HF、正常心搏间期标准差(SDNN)、相邻正常心搏间期差值大于50ms者所占百分比(PNN50)高于非运动组(P<0.05);运动组与非运动组晨起LF均呈上升趋势,HF呈下降趋势,运动组LF/HF上升幅度显著小于非运动组(P<0.05)。结论:运动训练不仅可改善原发性高血压病患者的自主神经功能,而且可对原发性高血压患者晨起自主神经功能的波动产生影响,使交感神经与迷走神经更趋平衡,从而可能对降低晨起心脑血管事件发生的危险性有益。

Effects of exercise training on HRV and their morning changes in patients with essential hypertension

Objective ： To morning changes in patient with esse study the effects of exercise training on HRV measurements and their ntial hypertension. Methods： Sixty EH patients were enrolled and divided into two groups according to whether they have exercise habit or not. 27 patients with exercise habit and 33 without exercise habit were observed. The global HRV index（SDNN, PNN50,LF, HF, LF/HF）, and LF, HF, LF/HF of each hour from 3Am to 8Am were compared. Results ： LF LF/HF of exercising group was lower than that of non-exercising group, while HE, PNN50, SDNN was higher than that of non-exercising group（P〈0. 05）. In the morning, LF increased and HF decreased in both groups and there was no significant difference between them （P〉0. 05）, but the increasing magnitude of LF/HF from 3Am to 8Am per hour in exercising group was smaller than that of non exercising group（P〈0.05）. Conclusion： The sympathetic activity of EH patient with exercise habit is lower than that in the patient without exercise habit, while the parasympathetic is higher and the transition of autonomic activity in the morning is more smoothly.