Prevention of Unhealthy Weight Gain in Children from Economically Disadvantaged Circumstances: Reducing Obesogenic Behaviors and Increasing Self-Regulation

预防经济困难儿童的不健康体重增加：减少肥胖行为并增强自我调节

• 批准号: 10361409
• 负责人: Robert G Weaver
• 金额: $ 22.35万
• 依托单位: UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA
• 依托单位国家: 美国
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-03-15 至 2025-02-28
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10361409
• 关键词: Address; Behavior; Behavioral; Body Weight Changes; Body Weight decreased; Body mass index; Child; Child Welfare; Childhood; Communities; Data; Diet; Economically Deprived Population; Emotional; Environment; Exposure to; Food; Food Services; Future; Health; Health behavior; Household; Informal Social Control; Intervention; Intervention Studies; Lead; Life; Link; Low income; Meditation; Obesity; Overweight; Physical activity; Play; Prevention; Randomized; Research; Research Design; Role; Schedule; Schools; Science; Sleep; Structure; Testing; Time; Unhealthy Diet; United States Department of Agriculture; Vulnerable Populations; Weight; Weight Gain; Work; arm; base; cost; driving behavior; early childhood; excessive weight gain; experience; fitness; innovation; insight; moderate-to-vigorous physical activity; nutritional guideline; obesogenic; physical conditioning; physical inactivity; primary outcome; programs; randomized trial; secondary outcome; sedentary; sedentary lifestyle; service programs; social; voucher

For children (5-10 years) from low-income households, summer represents a “window of vulnerability” in which weight gain and fitness loss occur at an accelerated rate compared to the school year. We hypothesize the cause of accelerated weight gain and loss of fitness during summer is that children engage in greater amounts of obesogenic behaviors (i.e., diet, sleep, physical activity, sedentary behaviors) during summer that accelerate unhealthy weight gain and fitness loss. Evidence suggests that components within structured days (e.g., school days) have a positive influence on these behaviors. There is also evidence that the routines embedded within structured days are related to children’s self-regulation. During the summer, day camps (e.g., 7AM-5PM, 8-10wks) are a setting that can provide children a structured, healthy environment. However, the vast majority of children from low-income households have limited access to these programs during the summer due to cost. The research gaps addressed in this application are 1) the lack of strategies to mitigate unhealthy weight gain and fitness loss during the summer, 2) and obesogenic behaviors’ moderation (or meditation) of children’s weight gain and fitness loss during summer. This study will address these gaps with a rigorous research design that will follow children over two summers and one school year. Children will be randomized to two arms: children who do not attend a structured summer camp, and children who receive a voucher to attend a camp for 8 weeks. We hypothesize that children receiving the voucher will experience less weight gain and fitness loss than children not receiving the voucher. To test this hypothesis the following specific aims will be accomplished: Aim 1 (Primary): Compare changes in BMI z-scores and fitness among children from low-income households attending a structured summer day camp and those not attending a structured summer day camp. Aim 2 (Secondary): Compare changes in obesogenic behaviors among children attending a structured summer day camp and those not attending a structured summer day camp. Aim 3 (Exploratory): Explore changes in self-regulation and the moderating effect of these changes on primary and secondary outcomes among children attending and not attending a structured summer day camp.This study will provide valuable data to inform future interventions tested in a large-scale randomized trial. This project is significant because it targets the most vulnerable population of children (i.e., children from low-income households) during the time when they are the most vulnerable (i.e., summer). This project is innovative because 1) it will provide insight into children’s obesogenic behaviors that are driving unhealthy weight change and fitness loss during the summer and 2) it will provide preliminary data related to the ability of structured days to mitigate unhealthy weight gain and fitness loss during the summer.

对于低收入家庭的儿童（5-10 岁）来说，夏季代表着一个“脆弱之窗”，其中 与学年相比，体重增加和体能下降的速度加快。我们假设 夏季体重增加加速和体能下降的原因是儿童的活动量增加 夏季的致胖行为（即饮食、睡眠、体力活动、久坐行为）会加速肥胖 不健康的体重增加和健身损失。有证据表明，结构化日内的组成部分（例如，学校 天）对这些行为有积极的影响。还有证据表明，嵌入的例程 结构化的日子与孩子的自我调节有关。夏季期间，日间营（例如上午 7 点至下午 5 点，每周 8 至 10 周） 是一个可以为儿童提供结构化、健康的环境的环境。然而，绝大多数儿童 由于费用原因，低收入家庭在夏季参与这些计划的机会有限。研究 本申请中解决的差距是 1) 缺乏减轻不健康体重增加和健康损失的策略 夏季期间，2) 以及肥胖行为对儿童体重增加和健康的调节（或冥想） 夏季期间的损失。这项研究将通过严格的研究设计来解决这些差距，该设计将跟踪儿童 两个夏天和一个学年。孩子们将被随机分到两组：没有参加的孩子 结构化夏令营，以及获得参加 8 周夏令营优惠券的儿童。我们假设 收到优惠券的儿童比未收到优惠券的儿童体重增加和体能损失更少 代金券。为了检验这一假设，将实现以下具体目标： 目标 1（主要）：比较 参加结构化培训的低收入家庭儿童的 BMI z 分数和健康状况的变化 夏令营和那些没有参加结构化夏令营的人。目标 2（次要）：比较 参加和未参加结构化夏令营的儿童致肥胖行为的变化 参加结构化的夏令营。目标 3（探索性）：探索自我监管的变化和 这些变化对参加和未参加的儿童的主要和次要结果的调节作用 参加结构化的夏令营。这项研究将为未来测试的干预措施提供有价值的数据 在一项大规模随机试验中。该项目意义重大，因为它针对的是最弱势群体 儿童（即来自低收入家庭的儿童）在最脆弱时期（即 夏天）。该项目具有创新性，因为 1) 它将深入了解儿童的肥胖行为， 正在导致夏季不健康的体重变化和健康损失，2) 它将提供初步数据 与结构化的日子减轻夏季不健康的体重增加和健康损失的能力有关。