Department of Medical and Clinical Psychology and Medicine, Uniformed Services University of the Health Sciences (USU), Bethesda, Maryland, USA.
Section on Growth and Obesity, Program in Endocrinology, Metabolism and Genetics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), National Institutes of Health (NIH), DHHS, Bethesda, Maryland, USA.
Int J Eat Disord. 2020 Apr;53(4):618-624. doi: 10.1002/eat.23253. Epub 2020 Feb 27.
Momentary negative affect (NA) has been shown to predict eating patterns in the laboratory, yet, more stable mood states have not been studied in relation to eating patterns in the laboratory among youth at high risk for binge-eating disorder and obesity.
One-hundred-eight adolescent girls (14.5 ± 1.7 years) with BMI between the 75th-97th percentile who reported loss-of-control (LOC)-eating completed measures of trait anxiety and depressive symptoms. Food-intake patterns were measured from a laboratory test meal (9,385 kcal). Latent factor analysis of depressive symptoms and trait anxiety was used to compute latent trait NA. Multivariate general linear models predicted total energy, snacks, and macronutrient intake from trait NA, adjusting for age, race, height, lean-mass, and percentage fat-mass.
Trait NA was significantly positively related to total energy-intake, and, specifically, snacks, sweet snacks, and percentage sweet fats (ps ≤ .03), and negatively related to percentage protein consumed (p = .04).
Expanding on affect theory, trait NA may relate to palatable food-intake among girls with LOC-eating. Further data are needed to determine whether those with LOC-eating and trait NA are at heightened risk for the development of binge-eating disorder and obesity.
瞬时负性情绪（NA）已被证明可预测实验室中的进食模式，但在暴食障碍和肥胖的高风险青少年中，尚未研究更稳定的情绪状态与实验室中的进食模式之间的关系。
108 名青少年女孩（14.5±1.7 岁）的 BMI 在第 75-97 百分位之间，报告有失控（LOC）进食行为，完成了特质焦虑和抑郁症状的测量。通过实验室测试餐（9385kcal）测量食物摄入量模式。使用抑郁症状和特质焦虑的潜在因素分析来计算潜在特质 NA。多元一般线性模型根据年龄、种族、身高、瘦体重和体脂肪百分比，从特质 NA 预测总能量、零食和宏量营养素的摄入量。
特质 NA 与总能量摄入显著正相关，特别是与零食、甜食、甜食脂肪百分比呈正相关（p≤.03），与蛋白质摄入百分比呈负相关（p=.04）。
在情感理论的基础上，特质 NA 可能与 LOC 进食女孩的美味食物摄入量有关。需要进一步的数据来确定是否具有 LOC 进食和特质 NA 的个体处于暴食障碍和肥胖发展的高风险中。
