Department of Psychiatry and Behavioral Sciences, University of Southern California, Los Angeles, California, USA.
Department of Preventive Medicine, University of Southern California, Los Angeles, California, USA.
Eat Disord. 2022 Mar-Apr;30(2):154-167. doi: 10.1080/10640266.2020.1746121. Epub 2020 May 13.
Binge-eating disorder (BED) is associated with overweight/obesity, physical inactivity, and disturbances in affective functioning. While research suggests that physical activity (PA) may have beneficial effects on BED symptoms, little is known about the daily correlates of PA. As a first step in understanding the processes linking PA and binge eating, this study examined associations between PA (i.e., self-reported time engaged in moderate-to-vigorous PA), affective functioning (i.e., positive and negative affect, body satisfaction, emotion regulation), and eating-related cognitions and behaviors (i.e., craving, overeating, loss of control eating) measured via ecological momentary assessment (EMA). Adults with BED ( = 91) completed a seven-day EMA protocol during which they completed repeated measures of these variables. Results indicated individuals who reported greater time engaged in PA over the EMA protocol evidenced higher positive affect and body satisfaction, and lower overeating (between-subjects effects). No significant within-subjects effects were observed. Findings demonstrate that individual differences in PA levels were related to more adaptive affective functioning and eating regulation in daily life. Results highlight the relevance of PA in BED, and the need for future studies to identify the timescale of these relationships using objective measurements of PA.
暴食障碍（BED）与超重/肥胖、身体活动不足和情感功能障碍有关。虽然有研究表明，身体活动（PA）可能对 BED 症状有有益的影响，但关于 PA 的日常相关性知之甚少。为了在理解 PA 和暴食之间的联系过程方面迈出第一步，本研究通过日常活动评估（EMA），考察了 PA（即报告的中等至剧烈强度 PA 的时间）、情感功能（即积极和消极情绪、身体满意度、情绪调节）以及与饮食相关的认知和行为（即渴望、暴饮暴食、失控性进食）之间的关联。91 名 BED 成人完成了为期七天的 EMA 方案，在此期间，他们反复测量了这些变量。结果表明，在 EMA 方案中报告更多 PA 时间的个体表现出更高的积极情绪和身体满意度，以及更低的暴饮暴食（组间效应）。没有观察到显著的个体内效应。研究结果表明，PA 水平的个体差异与日常生活中更适应的情感功能和饮食调节有关。结果强调了 PA 在 BED 中的相关性，以及未来研究需要使用 PA 的客观测量来确定这些关系的时间尺度。
