在一项为期24个月的行为减肥试验中，感知到的健康饮食障碍对饮食和体重的影响。
Impact of Perceived Barriers to Healthy Eating on Diet and Weight in a 24-Month Behavioral Weight Loss Trial.
作者信息
Wang Jing, Ye Lei, Zheng Yaguang, Burke Lora E
机构信息
School of Nursing, University of Texas Health Science Center at Houston, Houston, TX.
Center for Aging and Population Health, University of Pittsburgh, Pittsburgh, PA.
出版信息
J Nutr Educ Behav. 2015 Sep-Oct;47(5):432-6.e1. doi: 10.1016/j.jneb.2015.05.004. Epub 2015 Jul 7.
OBJECTIVE
To examine longitudinal changes in perceptions of barriers to healthy eating and its impact on dietary intake and weight loss in a 24-month trial.
METHODS
A secondary analysis was conducted using data from a behavioral weight loss trial (n = 210). The Barriers to Healthy Eating (BHE) scale was used to measure perceived barriers to healthy eating. Weight, total energy, and fat intake were measured. Longitudinal mixed regression modeling was used for data analysis.
RESULTS
The BHE total score decreased from baseline to 6 months and increased slightly from 6 to 24 months (P < .001). Changes in BHE total and subscale scores were positively associated with changes in total energy and fat intake (P < .05) as well as weight (P < .01).
CONCLUSIONS AND IMPLICATIONS
Reducing barriers could lead to improved short-term dietary changes and weight loss. Innovative strategies need to be developed to prevent barriers from increasing when intervention intensity begins to decrease.
目的
在一项为期24个月的试验中，研究对健康饮食障碍认知的纵向变化及其对饮食摄入和体重减轻的影响。
方法
使用一项行为减肥试验（n = 210）的数据进行二次分析。采用健康饮食障碍（BHE）量表来测量对健康饮食的感知障碍。测量体重、总能量和脂肪摄入量。数据分析采用纵向混合回归模型。
结果
BHE总分从基线到6个月下降，从6个月到24个月略有上升（P < .001）。BHE总分及子量表得分的变化与总能量、脂肪摄入量的变化（P < .05）以及体重变化（P < .01）呈正相关。
结论与启示
减少障碍可能会带来短期饮食变化的改善和体重减轻。需要制定创新策略，以防止在干预强度开始降低时障碍增加。
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