Heron Kristin E, Scott Stacey B, Sliwinski Martin J, Smyth Joshua M
Survey Research Center, The Pennsylvania State University, University Park, PA.
Int J Eat Disord. 2014 Dec;47(8):853-9. doi: 10.1002/eat.22292. Epub 2014 May 6.
A growing body of research seeks to understand the relationship between mood and eating behaviors. Ecological Momentary Assessment (EMA) methods provide a method for assessing these processes in natural settings. We used EMA to examine the relationship between mood and eating behaviors in everyday life among women with subclinical disordered eating behaviors.
Participants (N = 127, age M = 19.6 years, BMI M = 25.5) completed five daily EMA reports on palmtop computers for 1 week. Assessments included measures of negative affect (NA) and eating-related behavior during eating (eating large amounts of food, loss of control over eating, and restricting food intake) and noneating episodes (skip eating to control weight/shape). Time-lagged multilevel models tested mood-eating behavior relationships.
Higher NA did not precede any unhealthy eating and weight control behaviors. However, NA was higher when women reported eating large quantities of food, losing control over eating, and restricting food intake during their most recent eating episode, but not after skipping eating to control weight/shape.
These findings elucidate the processes in daily life that may influence the development and maintenance of unhealthy eating and weight control behaviors that, in turn, can inform interventions.
越来越多的研究试图了解情绪与饮食行为之间的关系。生态瞬时评估(EMA)方法提供了一种在自然环境中评估这些过程的方法。我们使用EMA来研究亚临床饮食失调行为女性日常生活中情绪与饮食行为之间的关系。
参与者(N = 127,年龄M = 19.6岁,BMI M = 25.5)在掌上电脑上完成了为期1周的每日5份EMA报告。评估包括负面情绪(NA)测量以及进食期间与饮食相关的行为(大量进食、进食失控和限制食物摄入量)和非进食时段(为控制体重/体型而不进食)。时间滞后多水平模型测试了情绪与饮食行为之间的关系。
较高的NA并非先于任何不健康的饮食和体重控制行为出现。然而,当女性报告在最近一次进食期间大量进食、进食失控和限制食物摄入量时,NA会更高,但在为控制体重/体型而不进食之后则不会。
这些发现阐明了日常生活中可能影响不健康饮食和体重控制行为的发展及维持的过程,进而可为干预措施提供参考。