ABSTRACT

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 (N = 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.

摘要

暴食症 (BED) 与超重/肥胖、缺乏运动和情感功能障碍有关。虽然研究表明身体活动 (PA) 可能对 BED 症状产生有益影响，但人们对 PA 的日常相关性知之甚少。作为了解 PA 和暴饮暴食相关过程的第一步，本研究检查了 PA（即自我报告的参与中度到剧烈 PA 的时间）、情感功能（即积极和消极影响、身体满意度、情绪调节），以及通过生态瞬时评估 (EMA) 测量的与饮食相关的认知和行为（即渴望、暴饮暴食、饮食失控）。有 BED 的成年人 ( N= 91) 完成了为期 7 天的 EMA 协议，在此期间他们完成了对这些变量的重复测量。结果表明，与 EMA 协议相比，报告更多时间参与 PA 的个人证明了更高的积极影响和身体满意度，以及更低的暴饮暴食（受试者间效应）。没有观察到显着的受试者内效应。研究结果表明，PA 水平的个体差异与日常生活中更具适应性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，以及未来研究使用 PA 的客观测量来确定这些关系的时间尺度的必要性。