两种情境中不同情绪稳定性个体心率变异性与心率的比较研究

目的 比较两种情境下不同情绪稳定性个体心率变异性与心率，探讨情境、情绪稳定性与心率变异性的关系。方法 96名健康男性飞行学员，在60h飞行训练后由飞行教员用飞行学员情绪稳定性评价量表进行评定，分为高情绪稳定性组与低情绪稳定性组。在Sternberg双重作业任务与标准起落飞行两种情境中，记录心率变异性指标和心率，并进行比较。结果 Sternberg双重作业任务情境中，高情绪稳定性个体具有较小的Lfnorm和Hfnorm(P＜0．05)，较小的LF／HF和心率(P＜0．05)。但处于飞行情境中，高情绪稳定性个体则有较大的Lfnorm和Hfnorm，较小的LF／HF和心率(P＜0．05)。结论 与情绪稳定性相关的自主神经系统活动的波动性出现情境分离。提示个体适应外部环境的能力差异不仅体现在个性、气质和认知模式上，也存在生理基础的差异。

Comparison of Heart Rate Variability and Heart Rate between Individuals with Different Emotional Stability in Two Situations

Objective To compare heart rate variability(HRV) and heart rate(HR) between individuals with different emotional stabilities in two situations and to discuss the relationship between situation, emotional stability and HRV. Method Ninety-six healthy male flying students were assessed after 60 h flying exercises by senior pilots using Criterion Assessment Scale of Emotional Stability of Flying Cadets(CASESFC) compiled by our department. They were divided into groups of high emotional stability and low emotional stability. ECG were recorded in situations of Sternberg Dual Task and Flying and HRV components and HR were analyzed and compared. Result When subjects were exposed to Sternberg dual task situation, individuals with high emotional stability had lower LFnorm(P<0.05), HFnorm(P<0.05), LF/HF ratio and HR(P<0.05) than those with low emotional stability. When it comes to flying situation, individuals with high emotional stability had higher LFnorm and HFnorm, but LF/HF ratio and HR(P<0.05) were still lower than those with low emotional stability. Conclusion We found that there is a tendency which implies the situational separation of fluctuation of autonomic nervous system related to emotional stability. It suggests that the ability of an individual to adjust to outer environment depends not only on personality, temperament and cognitive module, but also on a physiological basis.