TRIAL OF ACTIVITY FOR ADOLESCENT GIRLS (TAAG)

青春期的体力活动水平急剧下降，尤其是 在女孩中间。鉴于众所周知的健康和心理社会益处 身体活动，开发创新的干预措施，鼓励青少年 女孩要领养并维持一种身体活跃的生活方式是不顾一切的 需要的。促进学校、家庭和儿童之间伙伴关系的干预措施 社区教授以生活方式为导向的身体活动技能，提供 支持性环境，并增加参与体育锻炼的机会 活动可能比单一组件获得更大的成功 干预措施。TAAG是一项多中心随机现场试验，开发于 对这一关切的回应。30个有中学和社区的社区 五个地理位置的资源将构成试验样本。 大约4,000名中学女生将提供数据来测试 干预对研究主要结果的有效性，每日 能量消耗和心肺健康。我们将在以下地点进行试验 巴尔的摩市和巴尔的摩县的六个学校和社区合作伙伴关系。 将进行形成性研究，以确定对中学的信念 女孩在有影响力的同龄人、成年人、 和社区机构。学校干预将在#年进行。 七、八年级体育与健康教育的随机干预学校 上课。我们建议以AAHPERD最佳体能为基础进行干预 计划，并纳入家庭支助计划。社区机构 与干预相关的学校将通过协助 课前和课后计划，并提供额外的计划 对青春期女孩很有吸引力。女孩将被跟踪进行初选和 7年级和8年级末的次要结果决定 干预措施的有效性。九年级的额外跟踪调查将 确定干预是否在维持效果方面成功。这个 主要分析将比较干预和对照社区 用于每日总能量消耗和心肺健康。次要的 结果是干预对体力活动模式的影响 和久坐行为；身体成分；开始吸烟；以及 自尊。其他分析将评估自我效能感、社会支持、 感受到的压力、学校表现和社区参与。结果将 确定一所综合性学校与社区联系的能力 减少体力活动和心肺功能下降的干预措施 通常在青春期女孩中观察到的健康状况。

Physical activity levels decline dramatically during adolescence, particularly among girls. Given the well-known health and psychosocial benefits of regular physical activity, developing innovative interventions to encourage adolescent girls to adopt and maintain a physically active lifestyle is desperately needed. Interventions that cultivate partnerships among schools, families, and communities to teach lifestyle-oriented physical activity skills, provide supportive environments, and enhance opportunities to engage in physical activity are likely to be met with greater success than single-component interventions. TAAG is a multi-center randomized field trial developed in response to this concern. Thirty communities with middle schools and community resources across five geographical locations will constitute the trial sample. Approximately 4,000 girls in middle school will provide data to test the effectiveness of the intervention on the primary outcomes of the study, daily energy expenditure and cardiorespiratory fitness. We will conduct the trial in six school- community partnerships in Baltimore City and Baltimore County. Formative research will be conducted to determine beliefs about middle school girls' physical activity and sedentary habits among influential peers, adults, and community agencies. The school intervention will be conducted in randomized intervention schools in 7th and 8th grade PE and Health Education classes. We propose basing the intervention on the AAHPERD Physical Best Program, and incorporating a family support program. Community agencies associated with the intervention schools will partner by assisting with before- and after-school programs and providing additional programming attractive to adolescent girls. Girls will be followed for primary and secondary outcomes at the end of 7th and 8th grade to determine the effectiveness of the intervention. Additional follow-up in 9th grade will determine whether the intervention was successful in maintaining effects. The main analysis will compare the intervention versus the comparison communities for overall daily energy expenditure and cardiorespiratory fitness. Secondary outcomes are the effects of the intervention on patterns of physical activity and sedentary behaviors; body composition; initiation of smoking; and self-esteem. Additional analyses will evaluate self-efficacy, social support, perceived stress, school performance, and community involvement. Results will determine the ability of a comprehensive school and community-linked intervention to reduce the decline of physical activity and cardiorespiratory fitness typically observed among adolescent girls.