忧虑期间的高频心率变异性可预测与压力相关的睡眠障碍增加。
High-frequency heart rate variability during worry predicts stress-related increases in sleep disturbances.
作者信息
Gouin Jean-Philippe, Wenzel Kerstin, Boucetta Soufiane, O'Byrne Jordan, Salimi Ali, Dang-Vu Thien Thanh
机构信息
Department of Psychology, Concordia University, 7141 Sherbrooke St W, Montréal H4B 1R6, Canada; Center for Clinical Research in Health, Concordia University, 7141 Sherbrooke St W, Montréal H4B 1R6, Canada; PERFORM Center, Concordia University, 7141 Sherbrooke St W, Montréal H4B 1R6, Canada.
Department of Psychology, Concordia University, 7141 Sherbrooke St W, Montréal H4B 1R6, Canada.
出版信息
Sleep Med. 2015 May;16(5):659-64. doi: 10.1016/j.sleep.2015.02.001. Epub 2015 Feb 7.
OBJECTIVE
The aim of this study was to evaluate whether high-frequency heart rate variability (HF-HRV) during waking restfulness and during worry predicts increases in sleep disturbances in response to a stressful life event.
METHODS
A longitudinal study following up 22 individuals from well-defined periods of lower and higher stress was conducted. HF-HRV during waking restfulness and in response to a worry induction was measured during a low-stress period. Sleep disturbances were assessed using the Pittsburgh Sleep Quality Index (PSQI) and the Insomnia Severity Index (ISI) during low-stress and high-stress periods.
RESULTS
During both the low- and high-stress periods, lower HF-HRV during worry was associated with greater PSQI scores. Importantly, lower HF-HRV during the worry induction prospectively predicted greater increases in the PSQI score from the low-stress to the high-stress periods.
CONCLUSION
HF-HRV during worry might represent an index of vulnerability to stress-induced sleep disturbances.
目的
本研究旨在评估清醒静息状态下及忧虑期间的高频心率变异性（HF-HRV）是否能预测应激性生活事件后睡眠障碍的增加。
方法
开展了一项纵向研究，对22名处于明确的低压力期和高压力期的个体进行随访。在低压力期测量清醒静息状态下及忧虑诱发时的HF-HRV。在低压力期和高压力期使用匹兹堡睡眠质量指数（PSQI）和失眠严重程度指数（ISI）评估睡眠障碍。
结果
在低压力期和高压力期，忧虑期间较低的HF-HRV均与较高的PSQI得分相关。重要的是，忧虑诱发时较低的HF-HRV前瞻性地预测了从低压力期到高压力期PSQI得分的更大增加。
结论
忧虑期间的HF-HRV可能是应激诱导性睡眠障碍易感性的一个指标。
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