直觉性饮食、客观体重状况与健康的身体指标。
Intuitive eating, objective weight status and physical indicators of health.
作者信息
Keirns N G, Hawkins M A W
机构信息
Department of Psychology Oklahoma State University Stillwater OK USA.
出版信息
Obes Sci Pract. 2019 Jul 29;5(5):408-415. doi: 10.1002/osp4.359. eCollection 2019 Oct.
INTRODUCTION
Intuitive eating (IE) has emerged as a weight-neutral approach to health promotion for those with overweight/obesity. This weight-neutral paradigm has some support, although research thus far has often neglected to control for potential confounds (i.e. objective weight status and demographics) and foundational studies are lacking. The objective of the current study was to observe the unique association of IE with physical health indicators in a sample of adults, independent of objective weight status.
METHODS
Participants were 248 adults (32 ± 14 years old, 73% female, 64% White) of all weight categories (18.2-55.3 kg m), with an average body mass index (BMI) of 30 ± 8 kg m. IE was measured with the Intuitive Eating Scale-2 (IES-2). BMI was objectively measured in-lab. Health indicators included blood pressure (BP) and fasting glucose.
RESULTS
A series of hierarchical linear regressions revealed no significant associations between IE and systolic BP ( = -0.076, = 0.256), diastolic BP (DBP; = -0.122, = 0.073) or fasting glucose ( = 0.047, = 0.500) after controlling for BMI. All effects sizes were small or below ( = 0.00 to -0.04). Sensitivity analyses revealed significantly lower DBP in high intuitive eaters versus low when analysed with a -test, (111.651) = 3.602, < 0.001, Levene corrected; however, after controlling for relevant covariates (i.e. BMI and demographics), analysis of covariance revealed no difference in DBP between groups, (1, 116) = 0.330, = 0.567. No significant differences in systolic BP or fasting glucose were observed between low and high intuitive eaters before or after considering covariates.
CONCLUSIONS
In sum, this study investigated associations between IE and common indicators of physical health after controlling for objective weight status. Findings revealed no unique relationship between IE and physical health, and any IE-physical health relationships that were observed were accounted for BMI and/or demographic factors.
引言
直觉饮食（IE）已成为一种对超重/肥胖人群促进健康且体重保持中性的方法。这种体重中性范式有一定支持，尽管迄今为止的研究常常忽略控制潜在混杂因素（即客观体重状况和人口统计学因素），且缺乏基础研究。本研究的目的是在一个成年人样本中观察IE与身体健康指标之间的独特关联，独立于客观体重状况。
方法
参与者为248名所有体重类别（体重指数18.2 - 55.3kg/m²）的成年人（32±14岁，73%为女性，64%为白人），平均体重指数（BMI）为30±8kg/m²。使用直觉饮食量表 - 2（IES - 2）测量IE。在实验室客观测量BMI。健康指标包括血压（BP）和空腹血糖。
结果
一系列分层线性回归显示，在控制BMI后，IE与收缩压（β = -0.076，p = 0.256）、舒张压（DBP；β = -0.122，p = 0.073）或空腹血糖（β = 0.047，p = 0.500）之间无显著关联。所有效应量都很小或更低（R² = 0.00至 -0.04）。敏感性分析显示，使用t检验分析时，高直觉饮食者的舒张压显著低于低直觉饮食者，t(111.651) = 3.602，p < 0.001，经Levene校正；然而，在控制相关协变量（即BMI和人口统计学因素）后，协方差分析显示两组之间舒张压无差异，F(1, 116) = 0.330，p = 0.567。在考虑协变量之前或之后，低直觉饮食者和高直觉饮食者之间在收缩压或空腹血糖方面均未观察到显著差异。
结论
总之，本研究在控制客观体重状况后调查了IE与常见身体健康指标之间及的关联。研究结果显示IE与身体健康之间没有独特关系，观察到的任何IE与身体健康的关系都可由BMI和/或人口统计学因素解释。
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