FOOD SUBSTITUTION FOR CHILD NUTRITION/OBESITY PREVENTION

儿童营养/预防肥胖的食品替代品

• 批准号: 7271144
• 负责人: Myles S Faith
• 金额: $ 23.67万
• 依托单位: UNIVERSITY OF PENNSYLVANIA
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-15 至 2009-07-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7271144
• 关键词: 6 year old; Age; Behavioral; Body Composition; Body Weight Changes; Body fat; Child; Child Nutrition; Childhood; Clinical Trials; Compatible; Condition; Control Groups; Cooking Practices; Data; Diet Habits; Dietary intake; Eating; Economics; Environment; Exercise; Family; Fatty acid glycerol esters; Food; Food Preferences; Health; Home environment; Intake; Intervention; Investigation; Measures; Mediating; Mediator of activation protein; Minority Groups; Modeling; Monitor; Obesity; Outcome; Outcome Measure; Parents; Participant; Prevention; Prevention strategy; Preventive; Randomized; Randomized Clinical Trials; Randomized Controlled Trials; Research Personnel; Sampling; Schools; Shapes; Taste Perception; Testing; Training; Weight; Weight Gain; base; behavior change; contingency management; cooking; design; environmental intervention; follow-up; food preparation; food restriction; fruits and vegetables; improved; insight; novel; nutrition education; obesity prevention; obesity risk; role model; skills; theories; treatment effect; weight gain prevention; weight maintenance

DESCRIPTION (provided by applicant): Childhood obesity is increasing nationwide, is associated with serious health complications, and tracks into adulthood. However, controlled obesity prevention studies remain scarce. Behavioral-economics theory offers a novel framework for conceptualizing and designing such interventions. To this end, we propose a randomized controlled trial that tests the effects of a "Family-Based Food Substitutions" intervention - with and without a Home-Food-Provisions component - on long-term weight change in children at risk for obesity. Based on behavioral-economics theory, we predict that increasing fruit and vegetable intake will substitute for the intake of untargeted energy dense foods and thereby reduce weight gain in children at-risk for obesity. This effect is predicted to be enhanced among families provided home provisions of targeted fruits and vegetables. Participants will be 180 families of diverse ethnic background, with the target child being 4 to 6 years old and "at-risk" for obesity. Families will be randomized to one of the following three treatment groups: (1) Minimal Intervention Control; (2) Family-Based Food Substitutions (FBFS); or (3) FBFS with Home-Food Provisions. There will be 60 families per condition. Families assigned to the control group will receive nutrition education. Those assigned to the FBFS group will be trained in behavioral strategies that target increased child fruit and vegetable intake (e.g., role modeling and contingency management training for parents). Families assigned to the FBFS with Home-Food-Provisions group will receive the aforementioned package plus supplies of targeted fruits and vegetables to enhance their home accessibility. The primary outcome measure will be short-term and 2-year changes in the children's body composition. Secondary outcomes will include measures of dietary intake, parental food preparation skills, and fruit and vegetable accessibility. Mediator analyses will elucidate the mechanisms by which the intervention exerts its effect on changes in body composition. This investigation is designed to provide new insights into environmental manipulations that will induce food substitutions compatible with obesity prevention, while advancing behavioral-economics theory.

描述（由申请人提供）：儿童肥胖症在全国范围内不断增加，与严重的健康并发症有关，并持续到成年。然而，控制性肥胖预防研究仍然很少。行为经济学理论提供了一个新的框架，概念化和设计这样的干预措施。为此，我们提出了一项随机对照试验，测试“以家庭为基础的食物替代品”干预的效果-有和没有家庭食品供应组件-对肥胖风险儿童的长期体重变化。根据行为经济学理论，我们预测，增加水果和蔬菜的摄入量将取代非目标能量密集型食物的摄入量，从而减少肥胖风险儿童的体重增加。预计在家庭提供有针对性的水果和蔬菜的家庭中，这一效果将得到加强。参与者将是180个不同种族背景的家庭，目标儿童年龄为4至6岁，有肥胖“风险”。家庭将被随机分配到以下三个治疗组之一：（1）最小干预对照组;（2）以家庭为基础的食物替代品（FBFS）;或（3）家庭食物供应FBFS。每个条件下将有60个家庭。分配到对照组的家庭将接受营养教育。那些被分配到FBFS组的人将接受针对增加儿童水果和蔬菜摄入量的行为策略培训（例如，为家长提供角色示范和应变管理培训）。分配到家庭食品供应FBFS小组的家庭将收到上述一揽子计划以及有针对性的水果和蔬菜供应，以提高他们的家庭可及性。 主要的结果将是儿童身体成分的短期和2年的变化。次要结果将包括饮食摄入量，父母的食物准备技能，水果和蔬菜的可及性的措施。中介分析将阐明干预对身体成分变化产生影响的机制。这项调查的目的是提供新的见解，环境操纵，将诱导与肥胖预防兼容的食物替代，同时推进行为经济学理论。