Dieting, restraint, and disinhibition predict women's weight change over 6 y
Dieting, restraint, and disinhibition predict women's weight change over 6 y
复制标题
DOI：
10.3945/ajcn.2008.26558
复制
发表时间：
2009-07-01
影响因子：
7.1
通讯作者：
Birch, Leann L.
中科院分区：
文献类型：
--
作者：
Savage, Jennifer S.;Hoffman, Lesa;Birch, Leann L.
背景：虽然在女性中，限制饮食与较高的体重呈正相关，但限制饮食和节食是否缓和了限制饮食对体重变化的影响尚不清楚。目的：目的：研究在6年多的时间里，限制饮食和不限制饮食与自我报告节食减肥对女性体重增加的预测作用。设计：数据来自非西班牙裔白人女性(n=163)，每2年收集一次数据。身高和体重测量一式三份。饮食限制和解除抑制通过使用进食量表进行评估。参与者还被问及他们目前是否正在节食以减肥。结果：在对协变量进行调整后，生长曲线模型显示，随着时间的推移，个体内约束的增加与体重的同时减少有关，较高的约束水平缓和了饮食抑制和体重之间的正相关关系。在研究开始时报告节食的女性比不节食的女性在研究开始时体重更重，随着时间的推移体重增加更多。最后，约束、去抑制和节食之间的显著交互作用表明，在非节食者和节食者中，约束对去抑制体重的影响的缓和程度不同。结论：在节食女性中，增加饮食约束水平可能通过减弱去抑制与体重之间的正相关而有益于调节体重。要了解体重和体重变化，需要检查约束、去抑制和节食的交互影响。AM J Clin Nutr 2009；90：33-40。
Background: Although disinhibited eating is positively associated with higher weight in women, it is not known whether restrained eating and dieting moderate the influence of disinhibited eating on weight change.Objective: The objective was to investigate over 6 y the interactive effects of restrained and disinhibited eating and self-reported dieting to lose weight as predictors of weight gain in women.Design: Data were collected from non-Hispanic white women (n = 163) every 2 y. Height and weight were measured in triplicate. Dietary restraint and disinhibition were assessed by using the Eating Inventory. Participants were also asked if they were "currently dieting to lose weight." Multilevel modeling was used to examine change in weight as a function of time-invariant and time-varying predictors, including dietary restraint, dietary disinhibition, and self-reported dieting.Results: After covariates were adjusted for, growth curve models showed that within-person increases in restraint over time were associated with concurrent decreases in weight and that higher levels of restraint moderated the positive association between dietary disinhibition and weight. Women who reported dieting at study entry were heavier at study entry and gained more weight over time than did nondieters. Finally, a significant interaction between restraint, disinhibition, and dieting showed that restraint moderated the effect of disinhibition on weight differently in nondieters than in dieters.Conclusions: Increasing levels of dietary restraint may be beneficial in moderating weight by attenuating the positive association between disinhibition and weight in dieting women. An understanding of weight and weight change requires examination of the interactive effects of restraint, disinhibition, and dieting. Am J Clin Nutr 2009;90:33-40.