目的:负面影响是饮食失调维持模型的核心;确定这种联系的潜在机制可能为特定的治疗目标提供信息。当前的研究评估了哪些情绪(即,苦恼,恐惧,和道德情绪)与感觉肥胖和测试感觉脂肪是这些情绪与限制或暴饮暴食之间关系的纵向中介(https://osf.io/3d5cq/)。
方法:社区成年人(N=714,M[SD]年龄=41.5[13.7],84.6%女性,85.9%白色)提供基线数据,3个月,6个月随访。相对权重分析检查了哪些情绪类别与感觉肥胖之间表现出最强的纵向关系。交叉滞后面板模型测试了感觉脂肪作为情绪与饮食失调行为之间关系的中介。
结果:苦恼和道德情绪是感觉肥胖的最强情绪预测因子。感觉脂肪预测暴饮暴食(p<0.001),但不限制(p\s≥0.832),在随机效应交叉滞后面板模型中。感觉脂肪部分介导了痛苦和暴饮暴食之间的纵向关系(p=0.044);然而,校正BMI后,这一效应变得不显著(p=0.354).感觉到脂肪并不能调解道德情绪与暴饮暴食之间或痛苦或道德情绪与限制之间的关系(p≥0.638)。
结论:感觉脂肪与暴饮暴食有关,不限制,强调维护模型中特异性的重要性。因为感觉脂肪的中介作用是由体型决定的,与体型相关的因素,比如内化的体重柱头,可能是负面情绪与进食障碍行为之间关系的更相关的中介者。未来关于感觉脂肪的研究应该根据身体大小进行调整。
OBJECTIVE: Negative affect is central to eating disorder maintenance models; identifying mechanisms underlying this link may inform specific treatment targets. The current study evaluated which emotions (i.e., distress, fear, and moral emotions) were most strongly linked to feeling fat and tested feeling fat as a longitudinal mediator of the relationship between these emotions and restricting or binge eating (https://osf.io/3d5cq/).
METHODS: Community adults (N = 714, M[SD] age = 41.5[13.7], 84.6% female, 85.9% white) provided data at baseline, 3-month, and 6-month follow-up. Relative weights analysis examined which emotion categories exhibited the strongest longitudinal relationships with feeling fat. Cross-lagged panel models tested feeling fat as a mediator of the relationship between emotions and eating disorder behaviors.
RESULTS: Distress and moral emotions were the strongest emotional predictors of feeling fat. Feeling fat predicted binge eating (p\'s < 0.001), but not restricting (p\'s ≥ 0.832), in random effects cross-lagged panel models. Feeling fat partially mediated the longitudinal relationship between distress and binge eating (p = 0.044); however, this effect became nonsignificant after adjusting for BMI (p = 0.354). Feeling fat did not mediate relationships between moral emotions and binge eating or between either distress or moral emotions and restricting (p\'s ≥ 0.638).
CONCLUSIONS: Feeling fat was associated with binge eating, not restricting, highlighting the importance of specificity in maintenance models. Because the mediating effect of feeling fat was accounted for by body size, factors associated with body size, such as internalized weight stigma, may be more relevant mediators of the relationship between negative emotions and eating disorder behaviors. Future research on feeling fat should adjust for body size.