Appl Psychophysiol Biofeedback. 2013 Dec;38(4):265-71. doi: 10.1007/s10484-013-9232-7.
The present study was designed to examine the effect of heart rate variability (HRV) biofeedback on the cardiorespiratory resting function during sleep in daily life. Forty-five healthy young adults were randomly assigned to one of three groups: HRV biofeedback, Autogenic Training(AT), and no-treatment control. Participants in the HRV biofeedback were instructed to use a handheld HRV biofeedback device before their habitual bedtime, those in the AT were asked to listen to an audiotaped instruction before bedtime,and those in the control were asked to engage in their habitual activity before bedtime. Pulse wave signal during sleep at their own residences was measured continuously with a wrist watch-type transdermal photoelectric sensor for three time points. Baseline data were collected on the first night of measurements, followed by two successive nights for HRV biofeedback, AT, or control. Cardiorespiratory resting function was assessed quantitatively as the amplitude of high frequency(HF) component of pulse rate variability, a surrogate measure of respiratory sinus arrhythmia. HF component increased during sleep in the HRV biofeedback group,although it remained unchanged in the AT and control groups. These results suggest that HRV biofeedback before sleep may improve cardiorespiratory resting function during sleep.
本研究旨在考察心率变异性（HRV）生物反馈对日常生活中睡眠时心肺休息功能的影响。将 45 名健康的年轻成年人随机分为三组：HRV 生物反馈组、自生训练（AT）组和无治疗对照组。HRV 生物反馈组的参与者被指示在习惯的睡前使用手持式 HRV 生物反馈设备，AT 组的参与者被要求在睡前听录音指令，对照组的参与者被要求在睡前进行习惯的活动。使用腕戴式经皮光电传感器连续测量三个时间点的睡眠期间的脉搏波信号。在测量的第一晚收集基线数据，然后进行连续两晚的 HRV 生物反馈、AT 或对照。作为脉搏率变异性高频（HF）成分的幅度的心肺休息功能的定量评估，是呼吸窦性心律失常的替代测量。HRV 生物反馈组在睡眠期间 HF 成分增加，而 AT 和对照组则保持不变。这些结果表明，睡前的 HRV 生物反馈可能会改善睡眠期间的心肺休息功能。
