COMMUNITY STEPS TO MINORITY YOUTH FITNESS

目标：通过改善饮食和增加生活方式的体力活动，减少城市和中学儿童晚年肥胖相关疾病的当代标志。明确的目标。1.从一所随机选择的城市中学招募125名(主要是非洲裔美国人和拉丁裔)女孩和男孩(6-7年级)，让他们参加一个为文化量身定做的、以社区为基础的生活方式改变计划，该计划旨在通过预防胰岛素抵抗综合征来预防肥胖；将他们的经历与125名随机选择的对照学校的女孩和男孩进行对比。2.实施一项全面的、增强自我效能的、为期一学期的生活方式改变计划，通过减少包括胰岛素抵抗综合征在内的风险因素来降低肥胖风险。该计划将在日常生活方式体力活动(如有趣的散步、建筑之旅、徒步旅行等)持续增加的背景下，促进食用更多的蔬菜、全果、全谷物和更多的低卡路里密度食物。这项为期一学期的计划包括每周30分钟的散步和在各种社区场所举行的简短讨论，讨论更好的饮食选择和增加生活方式体育活动的挑战和好处。训练有素的同伴榜样、精选的父母和成人辅导员将为更好地饮食和进行更频繁、更愉快的体育活动提供合理的建议。在资源有限的情况下，该计划将尝试多层次的，涉及家长、教师、教练、餐饮服务人员、同龄人以及研究参与者。3.在4个月以上的随访期(学期末)、12个月和18个月的随访期评估项目的效果。主要结果是血清HbA1c和BMI；次要结果是血清总胆固醇、1英里长跑、饮食自我报告、体力活动自我报告。中介变量是自我报告的行为和态度。4.编写和分发一本资源书，其中包括那些被观察到对这一群体最有效的行为改变策略。

Goal: Reduce contemporary markers of later-in-life risk of obesity-related disease in urban, middle school children by improving their diet and increasing their lifestyle physical activity. Specific Aims. 1. Recruit 125 mostly African American and Latino girls and boys (6th - 7th grades) from a randomly- selected urban middle school and enroll them in a culturally- tailored, community-based lifestyle change program designed to prevent obesity by preventing the insulin resistance syndrome; contrast their experience with 125 matched girls and boys attending a randomly-selected comparison school. 2. Implement a comprehensive, self-efficacy-enhancing, semester-long lifestyle change program to reduce risk of obesity by reducing risk factors comprising the insulin resistance syndrome. The program will promote eating more servings of vegetables, whole fruits, whole grains and more servings of reduced calorie density foods in the context of sustained increases in daily "lifestyle" physical activity (e.g., fun walks, architectural tours, hiking, etc.). The semester-long program includes weekly 30-minute walks and brief discussion sessions in a variety of community venues about the challenges and benefits of better eating choices and increased lifestyle physical activity. Trained peer role models, selected parents and adult facilitators will provide sound advice for eating better and doing more frequent, enjoyable physical activity. Within resource constraints, the program will attempt to be multi-level, involving parents, teachers, coaches, food service staff, peers as well as study participants. 3. Evaluate program effectiveness at 4+ months follow-up (end of the semester), 12 and 18 months follow-up. Primary outcomes are serum HbA1c and BMI; secondary outcomes are serum total cholesterol, 1-mile run, dietary self-report, physical activity self-report. Mediating variables are self-report behaviors and attitudes. 4. Compile and distribute a resource book that includes those behavior change strategies that were observed to work best with this population.