Food reinforcement and obesity. Psychological moderators.
Food reinforcement and obesity. Psychological moderators.
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DOI：
10.1016/j.appet.2011.09.025
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发表时间：
2012-02
期刊：
影响因子：
5.4
通讯作者：
Fletcher, Kelly D.
中科院分区：
文献类型：
--
作者：
Epstein, Leonard H.;Lin, Henry;Carr, Katelyn A.;Fletcher, Kelly D.
食物的相对强化价值(RRVFood)提供了进食动机的指标。研究表明，肥胖者的RRV食物比非肥胖者的同龄人高，与更多的能量摄入有关，预测体重增加，并与冲动相互作用来预测能量摄入量。这项研究旨在确定饮食限制、饮食解除抑制或饥饿是否缓和了RRV食物对273名不同体重指数(BMI)成年人的体重状况和能量摄入的影响。在控制了年龄、性别、收入、教育程度、少数民族状况和RRV读数的情况下，采用分层回归方法评估了RRV食物对BMI和能量摄入的独立影响。结果表明，较大的RRV食物，而不是RRV读数，与较大的BMI和能量摄入有关。饮食去抑制和饮食约束对RRV食物和体重指数之间的关系有调节作用，饮食去抑制对这种关系的调节作用(R2=0.2)强于饮食约束(R2=0.095)。此外，饮食去抑制减缓了RRV食物对能量摄入量的影响。这些结果重复了RRV食物作为肥胖预测因子的重要性，并表明心理因素调节了食物强化对体重和能量摄入量的影响。这项试验在Clinicaltrials.gov上注册为NCT00962117。
The relative reinforcing value of food (RRVfood) provides an index of the motivation to eat. Research has shown that RRVfood is higher in obese individuals than their non-obese peers, is associated with greater energy intake, predicts weight gain and interacts with impulsivity to predict energy intake. This study was designed to determine whether dietary restraint, dietary disinhibition or hunger moderate the effect of RRVfood on the weight status and energy intake in 273 adults of various body mass index (BMI) levels. Hierarchical regression was used to assess the independent effects of RRVfood on BMI and energy intake, controlling for age, sex, income, education, minority status and RRVreading. Results showed that greater RRVfood, but not RRVreading, was associated with greater BMI and energy intake. Dietary disinhibition and dietary restraint moderated the relationship between RRVfood and BMI, with dietary disinhibition being a stronger moderator of this relationship (r2 = 0.20) than dietary restraint (r2 = 0.095). In addition, dietary disinhibition moderated the effect of RRVfood on energy intake. These results replicate the importance of RRVfood as a predictor of obesity, and show that psychological factors moderate the effect of food reinforcement on body weight and energy intake. This trial was registered at clinicaltrials.gov as NCT00962117.
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影响因子：
56.9
作者：
Hill, JO;Peters, JC
通讯作者：
Peters, JC
影响因子：
4.9
作者：
Cuntz, U;Leibbrand, R;Fichter, MM
通讯作者：
Fichter, MM
影响因子：
2.9
作者：
Brunstrom, JM;Yates, HM;Witcomb, GL
通讯作者：
Witcomb, GL
影响因子：
2.9
作者：
Lowe, Michael R.;Butryn, Meghan L.
通讯作者：
Butryn, Meghan L.
DOI：
10.1002/j.1550-8528.1995.tb00131.x
发表时间：
1995-03-01
期刊：
OBESITY RESEARCH
影响因子：
--
作者：
LAWSON, OJ;WILLIAMSON, DA;RYAN, DH
通讯作者：
RYAN, DH