Ray Lashawnna N, O'Connor Patrick J
Military Performance Division, United States Army Research Institute of Environmental Medicine, 10 General Greene Ave, Natick, MA, 01760, USA; Department of Kinesiology, University of Georgia, Athens, GA, 30602, USA.
Department of Kinesiology, University of Georgia, Athens, GA, 30602, USA.
Explore (NY). 2023 May-Jun;19(3):362-370. doi: 10.1016/j.explore.2022.07.005. Epub 2022 Jul 21.
Yoga is an increasingly popular mode of exercise that boasts health promoting effects including pain relief. A single bout of exercise induces a reduced sensitivity to noxious heat, but the mechanism for this effect and whether it occurs after a single session of yoga is unexplored. The primary aim of this study was to test, using a post-test only between-subjects design, main and interactive effects of yoga and slow breathing on both sensitivity to heat pain and endogenous pain modulation processing in healthy young women DESIGN: Fifty-four women were block randomized into one of four conditions: yoga with slow breathing instructions (Vinyasa), yoga with no breathing instructions, seated rest with slow breathing instructions and seated rest with no breathing instructions. The conditions were completed alone is a small room in which participant followed video-based instructions and models. The yoga was perceived as low-to-moderate intensity.
Two factor ANOVA demonstrated no significant association between yoga postures and slow breathing, and there was no significant interaction observed for sensitivity to heat pain or endogenous pain modulation. These findings were unchanged in ANCOVAs that controlled for four potential confounding variables: post-condition reduction in systolic blood pressure or state anxiety, pain induced by the conditions and expectations. Compared to the non-yoga conditions, participant in yoga conditions resulted in a significant reduction in state anxiety scores.
It is concluded that a single session of low-to-moderate intensity yoga with, or without slow breathing, reduces state anxiety but has no effect on heat pain sensitivity or endogenous pain modulation.
瑜伽是一种越来越受欢迎的运动方式，具有促进健康的功效，包括缓解疼痛。单次运动可降低对有害热刺激的敏感性，但这种效应的机制以及在单次瑜伽训练后是否会出现尚不清楚。本研究的主要目的是采用仅后测的组间设计，测试瑜伽和慢呼吸对健康年轻女性热痛敏感性和内源性疼痛调节过程的主要及交互作用。
54名女性被整群随机分为四种情况之一：有慢呼吸指导的瑜伽（流瑜伽）、无呼吸指导的瑜伽、有慢呼吸指导的坐姿休息和无呼吸指导的坐姿休息。这些情况在一个小房间里单独完成，参与者按照基于视频的指导和示范进行。该瑜伽被认为是低至中等强度。
双因素方差分析表明，瑜伽姿势与慢呼吸之间无显著关联，对热痛敏感性或内源性疼痛调节也未观察到显著交互作用。在控制了四个潜在混杂变量（条件后收缩压降低或状态焦虑、条件引起的疼痛和期望）的协方差分析中，这些结果没有变化。与非瑜伽情况相比，瑜伽情况下的参与者状态焦虑得分显著降低。
得出的结论是，单次低至中等强度的瑜伽训练，无论有无慢呼吸，均可降低状态焦虑，但对热痛敏感性或内源性疼痛调节无影响。
