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.

我们提出了一项 2 臂、平行组、随机对照试验，以测试放学后民族舞蹈计划加上根据文化量身定制的、以家庭为基础的减少屏幕时间干预措施（由双语拉丁裔社区健康顾问提供）的效果，以减少社会经济地位较低的青春期前拉丁裔女孩的体重增加（体重指数）。对照组将接受“主动安慰剂”基于信息的健康教育干预。总共 240 名 7-9 岁女孩将被随机分配到这两种条件下，并且这两种干预措施将持续每个女孩整整 2 年的研究周期。拉丁裔女孩患肥胖症和肥胖相关疾病的风险增加。然而，针对这一快速增长的人口，还没有有效且普遍的肥胖预防计划。我们提出的干预措施得到了我们过去和正在进行的研究的支持，证明了它们在减少青春期前儿童体重增加方面的可行性、可取性和潜在功效。所有干预措施都将 通过形成性研究，对拉丁裔女孩及其家庭进行进一步开发、修订和试点测试。女孩将从为加利福尼亚州圣何塞低收入拉丁裔社区提供服务的六所公立小学中招募。将在基线、6、12、18 和 24 个月时在女孩家中收集测量结果。体重指数 (BMI) 是主要结果指标。主要结果分析将使用随机回归模型，比较治疗组和对照组在整个两年试验过程中体重指数的变化轨迹。该研究有动力 (90%) 检测出具有临床意义的效果。主要假设：与对照组相比，治疗组的女孩在两年的研究期间将显着减少体重增加（BMI）。第二个假设：与对照组相比，治疗组女孩的腰围、三头肌皮褶厚度、收缩压和舒张压、静息心率、电视、录像带/DVD和电子游戏的使用、电视边吃饭、日常饮食将显着减少能量摄入量、脂肪能量百分比和体重问题，并显着增加他们的日常体力活动、每日中等至剧烈的体力活动、对体力活动的喜好、自尊和学校表现。此外，我们将评估潜在的人口、文化、心理和生物调节因素以及干预对 BMI 和次要结果的影响的中介因素，评估 BMI 和次要结果变化的相关性和风险因素，并评估干预实施/过程变量。与公共卫生的相关性：我们正在经历肥胖流行病。拉丁裔女孩患肥胖症和相关健康问题的风险较高。然而，缺乏有效的预防计划。我们建议为拉丁裔女孩制定和测试一项有前途且可能普遍推广的公共卫生计划。