EPI OF PHYSICAL ACTIVITY: TEENAGE TO ADULT YEARS

体力活动(PA)已被确定为国家优先领域 以促进美国民众的健康。而健康 积极生活方式的好处在成年人中得到了很好的证明， 在美国成年人口中，不运动的流行率仍然很高。它是 人们普遍认为，预防成年人的体育活动是 最好的方法是建立一种积极的生活方式 将持续到成年的青春。然而，有一种稀缺的 儿童与成人体力活动关系的数据 也没有证据表明活跃的孩子会变成活跃的成年人。 这项研究的总体目标是检查两者之间的关系 青春期体力活动与青少年体力活动 成人期。这项建议是对1245名年龄在 21-25岁，最初代表以混血人口为基础的队列 1990年被招募参加美国国立卫生研究院资助的一项纵向研究 青少年青少年伤害的发生率及其决定因素 伤害控制研究(AICS)。参与者的基线年龄为12岁- 年仅16岁。收集了大量的体力活动数据 AICS的四年。 体力活动将在目前的研究中使用 标准化问卷与青少年使用的问卷相同 学习。要收集的附加数据包括社会人口统计(即， 教育、婚姻状况、职业)、生活方式因素(即， 吸烟和饮酒)，以及心理社会因素(即自我 药效、社会支持、障碍)以及健康信息。 在这项拟议研究中收集的数据和来自AICS的数据将是 结合在一起，允许对相同主题进行纵向分析 12-16岁(AICS Bseline)至25-29岁(拟议研究的最后一年)。 这项研究的主要目标是：1)确定 从青春期到成年期的PA含量及其评估 可能的性别和种族差异；2)评估 从青春期到成年期的PA跟踪；以及3)评估 青春期PA的青春期预测因子

Physical activity (PA) has been identified as a national priority area for promoting the health of the US population. While the health benefits of an active lifestyle are well documented in adults, the prevalence of inactivity in the US adult population remains high. It is widely believed that the prevention of physical activity in adults is best accomplished by establishing a physically active lifestyle during youth that will persist into adulthood. However, there is a paucity of data on the relationship between childhood and adult physical activity and no evidence that an active child becomes an active adult. The overall goal of this study is to examine the relationship between physical activity in adolescence and physical activity in young adulthood. This proposal is a follow-up study of 1245 young adults aged 21-25 years, who represent a biracial population-based cohort initially recruited in 1990 to participate in a NIH funded longitudinal study of the incidence and determinants of injury in adolescents, the Asolescent injury Control Study (AICS).The baseline age of the participants was 12- 16 years of age. Extensive physical activity data were collected during the four years of AICS. Physical activity will be assessed in the current study using a standardized questionnaire identical to that used in the adolescent study. Additional data to be collected include sociodemographic (i.e., education, marital status, occupation), lifestyle factors (i.e., cigarette and alcohol use), and psychosocial factors (i.e., self- efficacy, social support, barriers), as well as health information. Data collected in this proposed study and data from AICS will be combined, allowing for longitudinal analyses of the same subjects from ages 12-16 (AICS bseline) to ages 25-29 (final year of proposed study). The primary objectives of this study are to: 1) determine changes in the amount of PA from adolescence to young adulthood and to evaluate possible gender and racial differences; 2) evaluate the degree of tracking of PA from adolescence to young adulthood; and 3) evaluate adolescent predictors of PA in young adulthood.