DECREASING WEIGHT GAIN IN AFRICAN-AMERICAN PREADOLESCENT

减少非裔美国人青春期前的体重增加

• 批准号: 6185069
• 负责人: MARY STORY
• 金额: $ 44.39万
• 依托单位: UNIVERSITY OF MINNESOTA
• 依托单位国家: 美国
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-01 至 2002-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6185069
• 关键词: African American; behavioral /social science research tag; clinical research; clinical trials; cognitive behavior therapy; cooperative study; dietary control; disease /disorder prevention /control; disease /disorder proneness /risk; exercise; female; health behavior; human subject; human therapy evaluation; low socioeconomic status; middle childhood (6-11); nutrition related tag; obesity; weight control

The increased prevalence of many of the health problems of African American women has been linked to the high prevalence of obesity. Of great concern, the prevalence of obesity has been increasing among African American women with a similar pattern in African American girls. Since weight reduction weight is difficult to achieve in adulthood, there is an urgent need for prevention approaches geared towards children. This proposal describes a two-phase plan to develop and evaluate a community-based intervention that promotes healthy dietary practices and increased physical activity among at risk or overweight 8-10 year-old African American girls living in low- income neighborhoods in the Twin Cities of Minneapolis and St Paul, Minnesota. A randomized clinical trial design will be used with 300 African American girls; 150 will be individually randomized to the intervention group and 150 to the control group. The intervention program will take place after school, two afternoons a week in neighborhood community centers and will be based on social cognitive theory, incorporating a youth development, resiliency-based approach. Community involvement through the establishment of a Community Advisory Council will provide input into all aspects of the study. The intervention focuses on activities designed to model and teach skills to prevent obesity through regular physical activity and healthy eating and a family component designed to reinforce and support these behaviors. An effective and innovative culturally- appropriate intervention will be developed through formative assessment with girls, parents, community leaders and youth workers in the targeted communities. In Phase I, a 12-week pilot-test will be conducted with 50 girls; 25 randomized to the intervention and 25 to the control group. In Phase II, the two-year intervention will be conducted in five community centers, twice a week for 11 months. Main outcome measures will be body mass index (BMI) and percent body fat (percent BF). The major hypothesis is that at the end of the full-scale study, girls in the intervention group, relative to girls in the control group, will have significantly lower BMI and percent BF after adjustment for baseline values. Secondary outcomes include physical activity level, total energy intake, percent intake from dietary fat, child and parent psychosocial factors related to diet and physical activity, blood cholesterol and blood pressure. Process measures will assess program implementation including measures of exposure, participation, compliance, receptivity, and fidelity of implementation.

非裔美国妇女许多健康问题的日益普遍与肥胖症的高患病率有关。 令人高度关注的是，非洲裔美国女性的肥胖患病率一直在上升，非洲裔美国女孩的情况也类似。 由于成年后减肥很难实现，因此迫切需要针对儿童的预防方法。 该提案描述了一个两阶段计划，旨在制定和评估基于社区的干预措施，以促进生活在双子城低收入社区的有风险或超重的 8-10 岁非裔美国女孩的健康饮食习惯和增加身体活动明尼苏达州明尼阿波利斯市和圣保罗市。 一项随机临床试验设计将在 300 名非裔美国女孩中进行； 150 名将被随机分配到干预组，150 名被分配到对照组。 干预计划将在放学后每周两个下午在邻里社区中心进行，并将以社会认知理论为基础，结合青少年发展和基于弹性的方法。 通过建立社区咨询委员会进行社区参与将为研究的各个方面提供投入。 该干预措施的重点是旨在通过定期体育活动和健康饮食以及旨在加强和支持这些行为的家庭组成部分来示范和传授预防肥胖的技能的活动。将通过对目标社区的女孩、家长、社区领袖和青年工作者进行形成性评估，制定有效、创新、文化适宜的干预措施。 第一阶段将在 50 名女孩中进行为期 12 周的试点测试； 25 名随机分配到干预组，25 名分配到对照组。 在第二阶段，为期两年的干预将在五个社区中心进行，每周两次，持续 11 个月。 主要结果指标是体重指数（BMI）和体脂百分比（BF 百分比）。 主要假设是，在全面研究结束时，相对于对照组女孩，干预组女孩在调整基线值后，BMI 和 BF 百分比将显着降低。 次要结果包括体力活动水平、总能量摄入、膳食脂肪摄入百分比、与饮食和体力活动相关的儿童和家长心理社会因素、血液胆固醇和血压。流程衡量标准将评估计划实施情况，包括曝光度、参与度、合规性、接受度和实施忠诚度的衡量标准。