深入了解瑜伽睡眠术——早期随机睡眠实验室研究。

A closer look at yoga nidra- early randomized sleep lab investigations.

机构信息

National University of Natural Medicine, Portland, OR, USA; State University of New York at Canton, Canton, NY, USA.

Oregon Health and Science University, Portland, OR, USA.

出版信息

J Psychosom Res. 2023 Mar;166:111169. doi: 10.1016/j.jpsychores.2023.111169. Epub 2023 Jan 29.

DOI:10.1016/j.jpsychores.2023.111169

PMID:36731199

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9973252/

Abstract

OBJECTIVES

We aimed to examine trial feasibility plus physiological and psychological effects of a guided meditation practice, Yoga Nidra, in adults with self-reported insomnia.

METHODS

Twenty-two adults with self-reported insomnia were recruited to attend two visits at our research center. At Visit 1 (V1), participants were asked to lie quietly for ninety minutes. The primary outcome was change in electroencephalography (EEG). Heart rate variability (HRV), respiratory rate and self-reported mood and anxiety were also measured. At Visit 2 (V2), the same protocol was followed, except half of participants were randomized to practice Yoga Nidra for the first 30-min.

RESULTS

There were no between-group changes (V1-V2) in alpha EEG power at O1 (Intervention: 13 ± 70%; Control: -20 ± 40%), HRV or sleep onset latency in response to Yoga Nidra. Respiratory rate, however, showed statistically significant difference between groups (Yoga Nidra -1.4 breaths per minute (bpm) change during and - 2.1 bpm afterwards vs. Control +0.2 bpm during and + 0.4 bpm after; p = .03 for both during and after). The intervention displayed good acceptability (well-tolerated) and credibility (perceived benefit ratings) with implementation success (target sample size reached; 5% dropout rate).

CONCLUSIONS

This preliminary clinical trial provides early evidence that Yoga Nidra is a well-tolerated, feasible intervention for adults reporting insomnia. Decreased respiratory rate in response to Yoga Nidra needs to be confirmed in more definitive studies.

TRIAL REGISTRATION INFORMATION

This trial was registered on ClinicalTrials.gov as "A Closer Look at Yoga Nidra: Sleep Lab Analyses" (NCT#03685227).

摘要

目的

本研究旨在探究瑜伽冥想练习（瑜伽睡眠）对自述有失眠症的成年人的试验可行性及生理心理影响。

方法

共招募 22 名自述有失眠症的成年人在我们的研究中心参加两次访问。在第一次访问（V1）中，要求参与者安静地躺 90 分钟。主要结果是脑电图（EEG）的变化。还测量了心率变异性（HRV）、呼吸率以及自我报告的情绪和焦虑。在第二次访问（V2）中，遵循相同的方案，但将参与者随机分为两组，其中一组在前 30 分钟内练习瑜伽睡眠。

结果

两组之间（V1-V2）的α脑电波功率（干预组：13 ± 70%；对照组：-20 ± 40%）、HRV 或睡眠潜伏期均无变化。然而，呼吸率在两组之间存在统计学差异（瑜伽睡眠干预组在期间和之后分别减少了 1.4 次/分钟和 2.1 次/分钟，而对照组在期间和之后分别增加了 0.2 次/分钟和 0.4 次/分钟；p 均为<0.05）。该干预措施具有良好的可接受性（耐受性良好）和可信度（感知益处评分），实施成功（达到目标样本量；5%的脱落率）。