Ethnic Dance & Screen Time Reduction to Prevent Weight Gain in Latina Girls

民族舞蹈

• 批准号: 7012631
• 负责人: THOMAS N. ROBINSON
• 金额: $ 77.51万
• 依托单位: STANFORD UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-05-01 至 2011-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7012631
• 关键词: Hispanic Americans; behavioral /social science research tag; body composition; body physical activity; clinical research; clinical trial phase III; culture; disease /disorder prevention /control; education evaluation /planning; elementary school; exercise; female; health education; human subject; low socioeconomic status; middle childhood (6-11); obesity; patient oriented research; recreation; statistics /biometry; weight gain

We propose a 2-arm, parallel group, randomized controlled trial to test the efficacy of an after school ethnic dance program plus a culturally-tailored, home-based screen time reduction intervention (delivered by bilingual, Latina, Community Health Advisors) to reduce weight gain (body mass index) among lower socioeconomic status, pre-adolescent Latina girls. The control group will receive an "active-placebo" information-based health education intervention. A total of 240 7-9 year old girls will be randomized to the two conditions, and both interventions will last for the full 2-year period of the study for each girl. Latina girls are at increased risk of obesity and obesity-related morbidities. However, effective and generalizable obesity prevention programs for this rapidly growing population are not available. Our proposed interventions are supported by our past and ongoing studies, demonstrating their feasibility, desirability and potential efficacy to reduce weight gain in preadolescent children. All interventions will be further developed, revised, and pilot-tested with Latina girls and their families through formative research. Girls will be recruited from six public elementary schools serving low-income Latino communities in San Jose, CA. Measures will be collected in girls' homes at baseline, 6, 12, 18 and 24 months. Body Mass Index (BMI) is the primary outcome measure. The primary outcome analysis will compare individual trajectories of change in BMI in the treatment and control groups over the entire two-year course of the trial, using random regression models. The study is powered (90%) to detect a clinically-significant effect. Primary hypothesis: Compared to controls, girls in the treatment group will significantly reduce their weight gain (BMI) over the two-year study period. Secondary hypotheses: Compared to controls, girls in the treatment group will significantly reduce their waist circumference, triceps skinfold thickness, systolic and diastolic blood pressures, resting heart rate, television, videotape/DVD and video game use, meals eaten with TV, daily dietary energy intake, percent of energy from fat, and weight concerns, and significantly increase their daily physical activity, daily moderate to vigorous physical activity, liking for physical activity, self-esteem, and school performance. In addition, we will evaluate potential demographic, cultural, psychological, and biological moderators and mediators of intervention effects on BMI and secondary outcomes, evaluate correlates and risk factors for change in BMI and secondary outcomes, and evaluate intervention delivery/process variables. Relevance to public health: We are experiencing an epidemic of obesity. Latina girls are at higher risk of obesity and associated medical problems. However, effective prevention programs are lacking. We propose to develop and test a promising and potentially generalizable public health program for Latina girls.

我们提出了一个2臂平行组，随机对照试验，以测试课后种族舞蹈计划的功效，以及一个文化销售的，基于家庭的筛查筛查时间减少干预措施（由双语，拉丁裔，社区健康顾问提供）减轻社会经济地位，预科生育前的拉丁裔女童的体重增加（体重指数）。对照组将获得“主动地位”基于信息的健康教育干预措施。总共240个7-9岁的女孩将被随机分配到这两个条件下，两种干预措施将在整个研究的整整2年期间为每个女孩持续。拉丁裔女孩的肥胖风险和与肥胖相关的病态风险增加。但是，对于迅速增长的人群，有效且可概括的肥胖预防计划尚无。我们提出的干预措施得到了我们的过去和正在进行的研究的支持，证明了它们的可行性，可取性和潜在的功效，以减轻前儿童体重增加。所有干预措施将是 通过形成性研究进一步与拉丁裔女孩及其家人进行了进一步开发，修订和试验。女孩将从六所公立小学招募，在加利福尼亚州圣何塞为低收入拉丁裔社区服务。在基线，6、12、18和24个月的基线时，将收集措施。体重指数（BMI）是主要结果度量。主要结果分析将使用随机回归模型比较在整个两年的试验过程中，在治疗组和对照组中BMI变化的个体轨迹。该研究是为检测临床意义的作用的动力（90％）。主要假设：与对照组相比，治疗组的女孩将在两年的研究期间显着减少体重增加（BMI）。 Secondary hypotheses: Compared to controls, girls in the treatment group will significantly reduce their waist circumference, triceps skinfold thickness, systolic and diastolic blood pressures, resting heart rate, television, videotape/DVD and video game use, meals eaten with TV, daily dietary energy intake, percent of energy from fat, and weight concerns, and significantly increase their daily physical activity, daily moderate to vigorous physical activity, liking for physical activity,自尊和学校表现。此外，我们将评估潜在的人口统计，文化，心理和生物学主持人以及干预对BMI和次要结果的影响的介体，评估BMI和次要结果的变化的相关性和风险因素，并评估干预措施递送/过程变量。与公共卫生有关：我们正在经历肥胖症的流行。拉丁裔女孩面临肥胖和相关医疗问题的较高风险。但是，缺乏有效的预防计划。我们建议为拉丁裔女孩开发和测试一项有前途且潜在的公共公共卫生计划。