INTERVENTIONS TO INCREASE ADOLESCENT PHYSICAL ACTIVITY

增加青少年体育活动的干预措施

• 批准号: 6351594
• 负责人: Deborah R. Young
• 金额: $ 35.26万
• 依托单位: JOHNS HOPKINS UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-02-05 至 2001-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6351594
• 关键词: African American; adolescence (12-20); aerobic exercise; behavioral /social science research tag; cardiovascular disorder prevention; clinical research; female; health behavior; health education; human subject; human therapy evaluation; lifestyle; longitudinal human study; physical fitness; secondary schools; women's health

Adolescent girls, particularly African American girls, are at increased risk of adopting a sedentary lifestyle, increasing their likelihood of developing cardiovascular diseases. There have been few school-based physical activity interventions for adolescents, even though this is a time in which their physical activity levels dramatically decline. Long-term follow-up of intervention effectiveness is virtually non-existent. The proposed project is a randomized, controlled trial of a life skills-oriented, comprehensive aerobic physical activity intervention (CAP) conducted during physical education (PE) class versus standard PE to increase physical activity and cardiorespiratory fitness in predominantly African American adolescent girls. Long-term follow-up of intervention effectiveness over 2 1/2 years will be assessed. The intervention will be conducted over two semesters and will incorporate behavioral skills training, including strong generalization and relapse prevention training components, into a PE class that focuses on aerobic exercise. A unique feature of the intervention is a family support component operationalized by a parent support training session and mail-delivered support tips and reminders to family members. Follow-up measures will be assessed through 11th grade (over 2 1/2 years) to determine long- term effectiveness of the interventions on physical activity level, cardiorespiratory fitness, and other selected cardiovascular risk factors. Ninth grade girls (3 cohorts in 3 successive years; n=300) attending an all-girls public high school in Baltimore, MD will be randomly assigned to the CAP or to standard PE. Physical activity level will be determined by the 7-day physical activity recall and by objective heart rate/motion sensor monitoring in a 50 percent random subsample. Cardiorespiratory fitness will be estimated from a submaximal step test. Selected cardiovascular risk factors (blood pressure, body composition, lipids) will also be determined. Follow-up will be assessed at 5, 11, 14, and 30 months post-randomization, providing long-term assessment of physical activity level and cardiorespiratory fitness compared with standard PE. This project will determine the ability of comprehensive interventions delivered in a school setting to reduce the rate of decline in physical activity typically observed in adolescent girls.

青春期的女孩，特别是非裔美国女孩，有久坐的生活方式的风险增加，增加了患心血管疾病的可能性。 对于青少年来说，几乎没有学校的体育活动干预措施，即使这是他们的体育锻炼水平急剧下降的时候。 长期的干预效果随访实际上是不存在的。 拟议的项目是一项随机，对照试验，是对生活技能，全面的有氧运动干预措施（CAP）（PE）（PE）班级与标准PE进行的，以增加非洲裔美国青少年女孩的体育锻炼和心脏呼吸适应性。 将评估2 1/2年的干预效力的长期随访。 该干预将在两个学期内进行，并将包括强大的概括和预防培训组件在内的行为技能培训，以侧重于有氧运动。 干预措施的一个独特功能是由家长支持培训课程和邮件提供的支持提示和向家人提醒的家庭支持组成部分。 随访措施将在11年级（超过2 1/2年）进行评估，以确定干预措施对身体活动水平，心肺健康和其他选定的心血管危险因素的长期有效性。 九年级的女孩（连续3年内3个队列； n = 300）就读于马里兰州巴尔的摩的全女孩公立高中，将随机分配给CAP或标准PE。 体育活动水平将由7天的体育活动回忆和50％随机子样本中的客观心率/运动传感器监测确定。心肺适应性将从次最大步骤测试中估算。 还将确定选定的心血管危险因素（血压，身体成分，脂质）。 随机化后，随访将在5、11、14和30个月进行评估，与标准PE相比，将对体育活动水平和心肺健康的长期评估。 该项目将确定在学校环境中提供的全面干预措施的能力，以降低青春期女孩通常观察到的体育锻炼率下降速度。