基于办公场所的瑜伽项目对心率变异性的影响：一项随机对照试验。
Effect of an office worksite-based yoga program on heart rate variability: a randomized controlled trial.
机构信息
School of Biomedical and Health Sciences, University of Western Sydney, Campbelltown, Australia.
出版信息
BMC Public Health. 2011 Jul 20;11:578. doi: 10.1186/1471-2458-11-578.
BACKGROUND
Chronic work-related stress is a significant and independent risk factor for cardiovascular and metabolic diseases and associated mortality, particularly when compounded by a sedentary work environment. Heart rate variability (HRV) provides an estimate of parasympathetic and sympathetic autonomic control, and can serve as a marker of physiological stress. Hatha yoga is a physically demanding practice that can help to reduce stress; however, time constraints incurred by work and family life may limit participation. The purpose of the present study is to determine if a 10-week, worksite-based yoga program delivered during lunch hour can improve resting HRV and related physical and psychological parameters in sedentary office workers.
METHODS AND DESIGN
This is a parallel-arm RCT that will compare the outcomes of participants assigned to the experimental treatment group (yoga) to those assigned to a no-treatment control group. Participants randomized to the experimental condition will engage in a 10-week yoga program delivered at their place of work. The yoga sessions will be group-based, prescribed three times per week during lunch hour, and will be led by an experienced yoga instructor. The program will involve teaching beginner students safely and progressively over 10 weeks a yoga sequence that incorporates asanas (poses and postures), vinyasa (exercises), pranayama (breathing control) and meditation. The primary outcome of this study is the high frequency (HF) spectral power component of HRV (measured in absolute units; i.e. ms2), a measure of parasympathetic autonomic control. Secondary outcomes include additional frequency and time domains of HRV, and measures of physical functioning and psychological health status. Measures will be collected prior to and following the intervention period, and at 6 months follow-up to determine the effect of intervention withdrawal.
DISCUSSION
This study will determine the effect of worksite-based yoga practice on HRV and physical and psychological health status. The findings may assist in implementing practical interventions, such as yoga, into the workplace to mitigate stress, enhance health status and reduce the risk of cardiovascular and metabolic diseases.
TRIAL REGISTRATION
ACTRN12611000536965URL: http://www.anzctr.org.au/ACTRN12611000536965.aspx.
背景
慢性与工作相关的压力是心血管和代谢疾病及相关死亡率的一个重要且独立的危险因素，尤其是当工作环境久坐不动时更是如此。心率变异性（HRV）可评估副交感和交感自主神经控制，并可作为生理压力的标志物。哈他瑜伽是一种身体要求很高的练习，可以帮助减轻压力；然而，工作和家庭生活带来的时间限制可能会限制参与。本研究的目的是确定在午餐时间进行为期 10 周的基于工作场所的瑜伽方案是否可以改善久坐的上班族的静息 HRV 以及相关的身体和心理参数。
方法和设计
这是一项平行臂 RCT，将比较分配到实验组（瑜伽）的参与者的结果与分配到无治疗对照组的参与者的结果。随机分配到实验组的参与者将在工作地点参加为期 10 周的瑜伽方案。瑜伽课程将以小组为基础，每周三次在午餐时间进行，由经验丰富的瑜伽教练授课。该方案将涉及在 10 周内安全地逐步教授初学者瑜伽序列，其中包括体式（姿势和体位）、串联（练习）、呼吸控制（呼吸控制）和冥想。本研究的主要结果是心率变异性（HRV）的高频（HF）光谱功率分量（以绝对单位测量；即 ms2），这是副交感自主神经控制的衡量标准。次要结果包括 HRV 的其他频率和时间域以及身体功能和心理健康状况的衡量标准。干预前、干预后和 6 个月随访时将进行测量，以确定干预退出的效果。
讨论
本研究将确定基于工作场所的瑜伽练习对 HRV 以及身体和心理健康状况的影响。研究结果可能有助于将瑜伽等实用干预措施纳入工作场所，以减轻压力、改善健康状况并降低心血管和代谢疾病的风险。
试验注册
ACTRN12611000536965URL：http://www.anzctr.org.au/ACTRN12611000536965.aspx。
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