摘要
目的 研究自主神经调节反馈训练对高原环境驻训军人的心率变异性和血压的影响,为高原驻训心理卫生保障提供技术方法. 方法 71名高原驻训军人,平均年龄(27.6±6.5)岁,在进驻高原(海拔3780 m)60d后,进行深呼吸和心率变异性生物反馈相结合的自主神经调节反馈训练,记录坐姿平静状态和自主神经调节反馈训练状态下的心率、心率变异性和血压指标.由于试验条件限制,仅采集到47名受试者的血压. 结果 ①自主神经调节反馈训练状态下受试平均心率低于平静状态(t=2.010,P＜0.05),心率变异性指标NN间期的标准差和低频功率高于平静状态(t=3.700、5.401,P＜0.01).②高原平静状态下受试者舒张压大于90 mm Hg占31.91％；自主神经调节反馈训练状态收缩压和舒张压均低于平静状态(t=4.062、7.632,P＜0.01).③受试者平静和自主神经调节反馈训练的收缩压和舒张压均与年龄呈正相关(r=0.363～0.605,P＜0.05). 结论 高原驻训期间,自主神经调节反馈训练能够降低心率和血压,增高心率变异性,对抗缺氧造成的生理反应,改善心理状态,可作为军事人员进驻高原的心理卫生保障手段.
Objective To study the effects of autonomic nervous biofeedback training on heart rate variabitity (HRV) and blood pressure of the military personnel stationed on plateau and to supply them with psychological support.Methods Seventy-one male military personnel (average age:27.6±6.5 yr) were selected as subjects.They were stationed on plateau of 3780 m for 60 d.Autonomic nervous biofeedback training that combined deep breath with HRV biofeedback was performed on them.HR,HRV and blood pressure of subjects were collected at sitting state and biofeedback state.Only 47 subjects' blood pressures were collected becauseof experimental condition limitation.Results ①Mean heart rate under autonomic nervous biofeedback state was significantly lower than that under sitting state (t=2.010,P＜0.05).Subjects' standard deviation of HRV in N-N interval and low frequency under autonomic nervous biofeedback state were significantly higher than those under sitting state (t 3.700,5.401,P＜0.01).②Ratio of diastolic pressure higher than 90 mm Hg was 31.91％under sitting state.Both systolic pressure and diastolic pressure under biofeedback state were significantly lower than those under sitting state (t=4.062,7.632,P＜0.01).The level of blood pressure was positively correlated to age under both states (r=0.363-0.605,P ＜ 0.05).Conclusions Autonomic nervous biofeedback training can reduce heart rate and blood pressure,but increase HRV of the subjects on plateau.It is suggested to strengthen psychological support for the military personnel stationed on plateau because of its benefits on moderating the hypoxia effects on physiology and improving mental state.
出处
《中华航空航天医学杂志》
CSCD
2013年第4期268-273,共7页
Chinese Journal of Aerospace Medicine
基金
全军后勤科技“十二五”重大项目(AKJ11J005)
