【哈佛醫學院研究】練習特定的瑜珈呼吸法，增進呼吸知能並改善睡眠品質

哈佛醫學院睡眠醫學研究：練習特定瑜珈呼吸與伸展，增進呼吸知能並改善慢性失眠

本篇分享美國哈佛醫學院布萊根婦女醫院睡眠醫學部（Division of Sleep Medicine, Brigham and Women's Hospital, Harvard Medical School）Khalsa 博士發表於《應用心理生理學與生物回饋》（Appl Psychophysiol Biofeedback）期刊的臨床研究。

一、研究背景：為什麼失眠與「自律神經高度喚醒」有關？

睡眠醫學證據顯示，慢性失眠患者常處於認知與生理上的「過度喚醒（Hyperarousal）」狀態，即使躺在床上，交感神經依然緊繃。傳統瑜珈透過深長平穩的呼吸調息（Pranayama）、溫和放鬆伸展與冥想內觀，能有效降低生理交感神經喚醒度，引導身體進入副交感神經主導的休息狀態。

二、實驗設計與 5 大睡眠指標的顯著改善

研究團隊請受試者先記錄 2 週的治療前基準睡眠日記，隨後介入為期 8 週的每日瑜珈與呼吸調息練習。針對完成完整計畫的 20 位慢性失眠受試者進行每兩週的數據分析，結果顯示以下五項核心睡眠指標均達到統計學上的顯著改善：

三、英文期刊原文摘要（Original PubMed Abstract）

Treatment of chronic insomnia with yoga: a preliminary study with sleep-wake diaries. Khalsa SB. Appl Psychophysiol Biofeedback. 2004 Dec;29(4):269-78. Division of Sleep Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.

Abstract: There is good evidence for cognitive and physiological arousal in chronic insomnia. In this preliminary study, a simple daily yoga treatment was evaluated in a chronic insomnia population consisting of sleep-onset and/or sleep-maintenance insomnia. For 20 participants completing the protocol, statistically significant improvements were observed in Sleep Efficiency (SE), Total Sleep Time (TST), Total Wake Time (TWT), Sleep Onset Latency (SOL), and Wake Time After Sleep Onset (WASO) at end-treatment as compared with pretreatment values.