军事飞行人员自主神经稳定性训练的心率变异性指标分析

Study on heart rate variability of the military flying personnel in autonomic nervous stability training

目的研究自主神经稳定性训练的心率变异性评价指标,为军事飞行人员自主神经稳定性训练效果评定方法提供参考。方法以98名军事飞行人员为研究对象,采集飞行人员三阶段式自主神经稳定性训练前后的心电信号,计算心率变异性频域指标0.1Hz指数(ratio of 0.1Hz power,R);将个体训练前后的R值分别标记为R_(1)和R_(2),计算其差值(difference value,D;D=R_(2)-R_(1))。探讨将R_(2)与D值作为训练效果评价指标的可行性,并制定评价常模标准。为了更直观地展示个体的自主神经稳定性训练水平在整个飞行人员群体中所处的位置,使用Z分数对R_(2)与D值的原始分进行转换,并制定评价标准。结果飞行人员自主神经稳定性训练后的R值(R_(2)=0.473±0.248)较训练前(R_(1)=0.197±0.092)显著增高(t=10.59,P<0.001),且在训练前R值较低的个体更易获得较大的增高趋势。结论0.1Hz指数适用于自主神经稳定性训练效果评价。飞行人员自主神经稳定性训练效果评价应综合考虑R_(2)和D指标的等级评价结果。

Objective To provide references on evaluating autonomic nervous stability training effect of military flying personnel by studying the evaluation index of heart rate variability(HRV).Methods The ECG signals of 98 military flying personnel before and after three-stage autonomic nervous stability training were collected,and the ratio of 0.1Hz power(R)of HRV was calculated.The R value before and after personal training was marked as R_(1) and R_(2) respectively,and the D value was used to represent the difference value between R_(2) and R_(1).The feasibility of using R_(2) and D to evaluate the training effect was analyzed to formulate evaluation standards.In order to more intuitively display an individual′s autonomic nervous stability training level,the Z value was used to convert the original score of R_(2) and D,and the evaluation criteria were formulated.Results The R value after autonomic nervous stability training(R_(2)=0.473±0.248)was significantly higher than that before(R_(1)=0.197±0.092,P<0.01),and the individuals with lower R value before training have more obvious growth trend of R value after training.Conclusions"0.1Hz index"is suitable to be the evaluation index of autonomic nervous stability training effect.The evaluation of autonomic nervous stability training effect of flying personnel should comprehensively consider the grade evaluation results of R_(2) and D.