Levine M D, Marcus M D
University of Pittsburgh, USA.
Ann Behav Med. 1997 Spring;19(2):132-8. doi: 10.1007/BF02883330.
This study examined the effects of an interpersonal stressor on subsequent calorie intake in females with (N = 20) and without (N = 20) significant bulimic symptomatology.
Subjects participated in two laboratory sessions that differed according to experimental condition (stress versus no stress), completed self-report measures of mood and anxiety before and after the experimental task, and were provided with an array of snack foods after each session.
Counter to the hypothesis, women with bulimic symptoms did not differentially increase their intake when exposed to stress. However, results for the intake of each macronutrient indicated that both bulimic and control women increased their consumption of carbohydrates following the stressor. Thus, stress was related to increased carbohydrate consumption by all subjects but did not differentially affect the consumption of women with bulimic symptoms.
It may be that women with bulimic symptoms are not differentially vulnerable to eating in response to stress or that current laboratory paradigms are unable to detect differences in eating following a stressor.
本研究考察了人际压力源对有(N = 20)和无(N = 20)明显暴食症状女性随后热量摄入的影响。
受试者参加了根据实验条件(压力与无压力)不同的两个实验室环节,在实验任务前后完成情绪和焦虑的自我报告测量,并在每个环节后提供一系列休闲食品。
与假设相反,有暴食症状的女性在暴露于压力时并没有差异地增加她们的摄入量。然而,每种宏量营养素摄入量的结果表明,有暴食症状的女性和对照组女性在压力源后都增加了碳水化合物的摄入量。因此,压力与所有受试者碳水化合物摄入量的增加有关,但对有暴食症状的女性的摄入量没有差异影响。
可能是有暴食症状的女性在应对压力时对进食没有差异易感性,或者当前的实验室范式无法检测到压力源后进食的差异。