Department of Psychology, University of North Dakota, Grand Forks, North Dakota.
Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
Int J Eat Disord. 2018 Aug;51(8):835-841. doi: 10.1002/eat.22869. Epub 2018 Apr 25.
Weight suppression (WS), the difference between highest past non-pregnancy weight and current weight, predicts negative outcomes in eating disorders, but the impact of WS and related weight constructs are understudied in nonclinical, midlife populations. We examined WS (current weight < highest weight) and weight elevation (WE), the opposite of WS (current weight > lowest weight) and their associations with eating psychopathology in women aged 50+.
Participants were a community-based sample (N = 1,776, M = 59) who completed demographic and eating psychopathology questions via online survey. WS, WE, and WS × WE were tested as predictors of outcome variables; BMI and medical conditions that affect weight were controlled for.
Individuals that were higher on WS and WE were most likely to engage in current weight loss attempts, dieting in the past 5 years, and extreme lifetime restriction. Individuals with higher WS were more likely to experience binge eating, greater frequency of weight checking, overvaluation of shape and weight, and lifetime fasting. Individuals with higher WE were more likely to report negative life impacts of eating and dieting. Higher WS and WE each predicted higher levels of skipping meals over the lifetime.
This novel study investigated WS in midlife women and introduced a new conceptualization of weight change (WE) that may be more relevant for aging populations given that women tend to gain weight with age. The findings implicate the utility of investigating both WS and WE as factors associated with eating psychopathology in midlife women.
体重抑制(WS)是指过去最高非妊娠体重与当前体重之间的差异,它预测了饮食失调的不良后果,但在非临床中年人群中,WS 及相关体重指标的影响尚未得到充分研究。我们研究了 WS(当前体重<最高体重)和体重升高(WE),即 WS 的相反情况(当前体重>最低体重),并探讨了它们与 50 岁以上女性饮食心理障碍的关系。
参与者为基于社区的样本(N=1776,M=59),通过在线调查完成人口统计学和饮食心理障碍问题。将 WS、WE 以及 WS×WE 作为预测变量进行测试;控制 BMI 和影响体重的医疗状况。
WS 和 WE 较高的个体更有可能进行当前的减肥尝试、过去 5 年内节食以及极端的终身限制。WS 较高的个体更有可能出现暴食、更频繁地检查体重、对体型和体重的过度重视以及终身禁食。WE 较高的个体更有可能报告饮食和节食对生活的负面影响。WS 和 WE 较高的个体在一生中更有可能出现不规律进食。
本研究创新性地调查了中年女性的 WS,并引入了一种新的体重变化概念(WE),由于女性随着年龄的增长体重会增加,因此对于老年人群可能更为相关。研究结果表明,在中年女性中,研究 WS 和 WE 作为与饮食心理障碍相关的因素具有一定的实用价值。