Broadbent Jaclyn, Fuller-Tyszkiewicz Matthew, Dennerstein Michelle, Greenwood Jesse, Hancock Naomi, Thavapalan Nithyyaa, White Melissa
School of Psychology, Deakin University, Victoria, Australia.
School of Psychology, Deakin University, Victoria, Australia.
Obes Res Clin Pract. 2016 Nov-Dec;10(6):617-623. doi: 10.1016/j.orcp.2016.05.006. Epub 2016 Jun 2.
This study utilised the preload paradigm to evaluate whether trait-like dieting attitudes and behaviours (dietary restraint and flexibility in dieting rules) and context-specific factors (negative mood and hunger) predict food consumption among male and female participants.
Following a high calorie preload, 79 participants aged 18-40 completed a deceptive taste test in which they were encouraged to eat as much of the taste test foods as desired, and this ad libitum intake was measured.
Although each predictor (except negative mood) predicted consumption when tested individually, regression analyses revealed that dieting flexibility and current hunger were the strongest unique predictors of intake. Mood failed to directly predict food consumption, nor did it moderate the relationship between restraint and food intake.
Collectively, findings suggest that emphasis on dietary restraint in preload studies may be misplaced, as other proximal and stable factors may better predict food consumption.
本研究采用预负荷范式来评估特质性节食态度和行为（节食限制及节食规则的灵活性）以及特定情境因素（负面情绪和饥饿）是否能预测男性和女性参与者的食物摄入量。
在摄入高热量预负荷食物后，79名年龄在18至40岁之间的参与者完成了一项欺骗性味觉测试，测试中鼓励他们想吃多少味觉测试食物就吃多少，并测量了这种随意摄入量。
尽管每个预测因素（负面情绪除外）单独测试时都能预测食物摄入量，但回归分析显示，节食灵活性和当前饥饿感是摄入量最强的独立预测因素。情绪未能直接预测食物摄入量，也未调节限制与食物摄入量之间的关系。
总体而言，研究结果表明，在预负荷研究中强调节食限制可能放错了重点，因为其他近端和稳定因素可能能更好地预测食物摄入量。
