Examination of the Feasibility and Preliminary Efficacy of Yoga as an Intervention Approach to Improving Long-Term Weight Loss

项目摘要/摘要 行为减肥(WL)计划导致临床上显著的体重减轻；然而，长期 WL维护性差。以前的研究表明，长期的工作记忆成功可能需要增强的 能够克服生理性和享乐性的进食欲望，并提高应对生活的能力 压力源、消极情绪状态和对食物的渴望。因此，旨在减轻压力和 减少将食物作为应对厌恶经历的策略的倾向可能会起到保护作用 预防饮食失误；从而改善长期的WL结果。瑜伽是一种身心干预， 减轻压力，改善整体身心健康，并为 加强长期保持重要体重相关行为所需的心理技能。 瑜伽中练习的身体和认知技能针对多个潜在的心理过程(例如， 正念、耐受痛苦)，可以减少情绪化进食，改善饮食选择，并增强 忍耐力一个人对食物渴望或享乐主义进食冲动的容忍能力虽然瑜伽是一种有效的治疗方法 其他慢性健康状况，尚未被视为改善长期健康状况的潜在干预措施 WL结果。在肥胖领域，瑜伽一直被视为一种锻炼方式，而不是 必须将其作为一种身心干预方法(在其他领域也是如此)。因此，鉴于较低的卡路里 瑜伽的花费与许多形式的有氧运动相比，瑜伽对重要体重的影响-- 尚未检查相关过程和行为。这项研究的目的是研究可行性和 在体重管理计划中实施瑜伽的可接受性，并检查瑜伽的影响， 关于接触控制条件(CON)，关于重要的心理结构和体重相关 行为。60名体重指数在25-40公斤/平方米的女性将被随机分配到12周的标准行为 WL计划，然后是12周的集体瑜伽或12周的烹饪/饮食信息 上课。两组都将被指导进行自我监控并实现饮食和有氧运动目标 在整个24周的项目中。评估将在基线、第12周和第24周进行。出席人数和 将对瑜伽干预计划的满意度进行评估。瑜伽和CON将在总体上进行比较 (感知到的压力、正念、承受痛苦)和特定于饮食的变量(享乐、情绪和 注意饮食)，通过问卷调查和生态瞬时评估(EMA)进行评估。EMA将是 用于捕捉饮食诱惑、渴望和饮食失误，因为它们通过智能手机实时发生； 客观体力活动监测人员将检查瑜伽和有氧运动之间的水平是否存在差异 科恩。治疗组将比较12-24周的体重变化。这些初步的发现可以是 被用来为未来关于瑜伽疗效的研究提供信息，这是WL的身心干预的一个例子 以及瑜伽影响体重的心理机制。

Project summary/abstract Behavioral weight loss (WL) programs result in clinically significant weight losses; however rates of long-term WL maintenance are poor. Previous studies suggest that long-term WL success may require an enhanced ability to overcome physiological and hedonic urges to eat and an improved capacity for dealing with life stressors, negative mood states, and food cravings. Thus interventions which target stress reduction and reduce the tendency to use food as a coping strategy for aversive experiences may offer a protective effect against dietary lapses; thereby improving long-term WL outcomes. Yoga is a mind-body intervention which reduces stress and improves overall physical and psychological well-being and offers promise for strengthening the psychological skill set needed for maintaining important weight-related behaviors long-term. The physical and cognitive skills practiced within yoga target multiple underlying psychological processes (e.g., mindfulness, distress tolerance) which could reduce emotional eating, improve dietary choices, and enhance one's ability to tolerate food cravings or hedonic urges to eat. While yoga is an effective treatment approach for other chronic health conditions, it has not been examined as a potential intervention for improving long-term WL outcomes. Within the context of the obesity field, yoga has been viewed as a mode of exercise and not necessarily as a mind-body intervention approach (as is the case in other fields). Thus, given the lower caloric expenditure of yoga in comparison to many forms of aerobic exercise, the effect of yoga on important weight- related processes and behaviors has not been examined. This study aims to examine the feasibility and acceptability of implementing yoga within a weight management program and to examine the impact of yoga, relative to a contact-control condition (CON), on important psychological constructs and weight-related behaviors. Sixty women with a BMI of 25-40 kg/m2 will be randomly assigned to a 12-week standard behavioral WL program, followed by either 12 weeks of group-based yoga or 12 weeks of cooking/dietary information classes. Both groups will be instructed to self-monitor and achieve the dietary and aerobic exercise goals throughout the 24-week program. Assessments will occur at baseline and weeks 12 and 24. Attendance and program satisfaction with the yoga intervention will be assessed. YOGA and CON will be compared on general (perceived stress, mindfulness, distress tolerance), and eating-specific variables (hedonic, emotional, and mindful eating) assessed via questionnaire, and by ecological momentary assessment (EMA). EMA will be used to capture dietary temptations, cravings, and dietary lapses, as they occur in real-time via smartphones; objective physical activity monitors will examine whether levels of aerobic exercise differ between YOGA and CON. Treatment groups will be compared on 12-24 week changes in weight. These preliminary findings can be used to inform future research efforts on the efficacy of yoga, an example of a mind-body intervention for WL maintenance, and the psychological mechanisms through which yoga may influence body weight.