Medical College of Georgia FitKid Project

佐治亚医学院 FitKid 项目

• 批准号: 6666689
• 负责人: Bernard Gutin
• 金额: $ 71.56万
• 依托单位: AUGUSTA UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-30 至 2007-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6666689
• 关键词: behavioral /social science research tag; bioenergetics; blood pressure; body composition; cardiovascular disorder prevention; cholesterol; clinical research; diet therapy; elementary school; epidemiology; exercise; health behavior; health education; high density lipoproteins; human subject; human therapy evaluation; longitudinal human study; middle childhood (6-11); nutrition education; obesity; patient oriented research; photon absorptiometry; questionnaires

DESCRIPTION (provided by applicant): Long-term objective: To reduce the epidemic of child obesity and related disorders, which is partly due to youths being exposed to "obesogenic" environments that favor sedentary activities (TV watching, video games) and energy-dense snacks, while discouraging moderate-vigorous physical activity (MVPA). Specific aims: To test the hypotheses that (1) youths attending schools that provide a "fitogenic" after-school environment that encourages MVPA and healthy snacks will increase less in percent body fat (%BF) over a 3-yr period than youths who do not attend such schools; and (2) the fitogenic environment will lead to favorable changes in cardiovascular (CV) fitness, CV disease risk profile and psychosocial characteristics. Formative research: Two schools will be randomly assigned to control and experimental conditions for a pilot study to guide refinement of techniques to be used in the main trial; the pilot intervention will last for 3-mo. Design of main trial: 18 schools in Richmond County, Georgia, which is ca. 63% African-American, will be randomly assigned to control or experimental treatments; school (rather than individual) will be the unit of randomization and analysis. Measurements taken at the beginning and end of each of three grades (3rd-5th) will include: %BF with dual-energy x-ray absorptiometry; CV fitness with a modified Harvard Step Test; blood pressure, the total cholesterol to high density lipoprotein cholesterol ratio; anthropometry (height, weight, waist circumference); psychosocial variables related to sport and PA; and free-living PA and diet. All schools will receive information about healthy eating and PA. All 3rd graders in the control schools will be invited to participate in the testing alone, while all 3rd graders in the experimental schools will be invited to participate in both the testing and the after-school sessions, which will last 120 min each school-day afternoon. For 40 min, healthy snacks and homework assistance will be provided. The 80 min of MVPA will emphasize developmentally appropriate games and dance forms, offered in a climate conducive to development of sport competence, enjoyment and skills. The hypotheses will be tested with treatments x time analyses of variance to see if the changes in %BF and associated variables over the 3-yr period are more favorable in the experimental than in the control group. Potential public health value: If the data support the effectiveness of the intervention, then communities may be encouraged to foster fitogenic after-school environments to prevent obesity and associated health problems.

描述（由申请人提供）： 长期目标：减少儿童肥胖症和相关疾病的流行，这部分是由于青年人面临着有利于久坐活动（电视观看，视频游戏）和能量浓密的零食的“肥胖”环境，同时阻止了中等侵略性的体育活动（MVPA）。具体目的：要测试（1）在3岁时，（1）提供“ fitogenic”的学校的年轻人，这些学校提供“ fitogenic”的课后环境，而不是不上这样的学校的年轻人，在3年中，体内脂肪百分比（％bf）的人数会更少； （2）僵化环境将导致心血管（CV）健身，CV疾病风险特征和社会心理特征的有利变化。形成性研究：将两所学校随机分配给对控制和实验条件的试点研究，以指导在主要试验中使用的技术的完善；飞行员干预将持续3-MO。主要试验设计：佐治亚州里士满县的18所学校，约63％的非裔美国人将随机分配给对照或实验治疗。学校（而不是个人）将是随机分析和分析的单位。在三个等级的开始和结束时进行的测量（第3-5）将包括：双能X射线吸收测定法的％BF； CV健身和改进的哈佛步骤测试；血压，总胆固醇与高密度脂蛋白胆固醇比；人体测量法（身高，体重，腰围）；与体育和PA有关的社会心理变量；和自由生活的PA和饮食。所有学校都将收到有关健康饮食和PA的信息。将邀请对照学校中的所有三年级学生仅参加测试，而实验学校的所有三年级学生将被邀请参加测试和课后课程，每个学院的下午将持续120分钟。在40分钟内，将提供健康的零食和家庭作业援助。 MVPA的80分钟将强调在有利于运动能力，享受和技能的气候中提供的适当的游戏和舞蹈形式。假设将通过治疗X进行X差异分析进行测试，以查看在3年期间％BF和相关变量的变化在实验组中是否比对照组更有利。潜在的公共健康价值：如果数据支持干预措施的有效性，则可以鼓励社区促进抗毒源后的课后环境，以防止肥胖和相关的健康问题。