TRIAL OF ACTIVITY FOR ADOLESCENT GIRLS (TAAG)

在青春期，身体活动水平急剧下降，特别是 在女孩中。鉴于众所周知的健康和心理社会的好处， 体育活动，制定创新的干预措施，鼓励青少年 采取和保持积极的生活方式， needed.采取干预措施，培养学校、家庭和 社区教授以生活方式为导向的体育活动技能， 支持性环境，并增加参与体育活动的机会 活动可能比单一组成部分更成功 干预措施。TAAG是一项多中心随机田间试验， 回应这一关切。30个社区有中学和社区 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， 干预对研究主要结局的有效性，每日 能量消耗和心肺功能。我们将在 在巴尔的摩市和巴尔的摩县建立了六所学校与社区的伙伴关系。 将进行形成性研究，以确定有关中学的信念 有影响力的同龄人、成年人、 和社区机构。学校干预将在 随机干预学校七、八年级体育与健康教育 班我们建议根据AAHPERD物理最佳干预 计划，并纳入家庭支持计划。社区机构 与干预措施相关的学校将合作， 学前和课后课程，并提供额外的编程 对青春期女孩有吸引力。女孩将在小学和 在7年级和8年级结束时的次要结局，以确定 干预的有效性。9年级的额外随访将 确定干预是否成功地维持了效果。的 主要分析将比较干预社区和比较社区 每日能量消耗和心肺功能。二次 结果是干预对身体活动模式的影响 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，社会支持， 感知压力、学校表现和社区参与。结果将 确定了学校与社会联系的综合能力 干预措施，以减少体力活动和心肺功能的下降 青春期女孩的典型健康状况。

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.