McDermott Robert J, Nickelson Jen, Baldwin Julie A, Bryant Carol A, Alfonso Moya, Phillips Leah M, DeBate Rita D
Florida Prevention Research Center, University of South Florida, College of Public Health, 13201 Bruce B. Downs Blvd (MDC 056), Tampa, FL 33612, USA.
Prev Chronic Dis. 2009 Jan;6(1):A15. Epub 2008 Dec 15.
Obesity among youth is related to a decline in physical activity, and data on physical activity levels among children in elementary and middle schools are limited.
We leveraged a community-school district-university partnership in Sarasota County, Florida, in May of 2005 to assess physical activity levels among tweens (youth aged 9-13 years) and to measure the relationship between tweens' awareness of the Centers for Disease Control and Prevention's VERB program and participation in physical activity, using a minimally obtrusive survey. After surveying participating schools (4 elementary schools and 3 middle schools), we obtained 1,407 responses from children in grades 5 through 7.
In all, 83.1% of students met the federal recommendation for daily participation in vigorous-intensity physical activity (VPA), and 58.6% had tried a new game or sport within the previous 2 months. Mean number of days in the previous week engaging in VPA was significantly higher (P < .001) for boys (5.22) than for girls (4.35). Mean number of days engaging in VPA in the previous week was significantly higher (P = .006) among 6th-grade students (4.93) than 7th-grade students (4.54), but no consistent decline through the grade levels occurred. Activity was significantly correlated with the number of friends reported as playing a game or sport daily (r = .369, P < .001). Most students (88.8%) reported having seen, read, or heard messages or ads about VERB, a tween-centric national social marketing campaign promoting physical activity and participation in new games and sports.
Although participation in VPA was high, girls reported significantly fewer days spent engaged in VPA than did boys. We found a modest association between engaging in VPA and having active friends. Capitalizing on leadership from multiple community-based organizations to monitor youth physical activity may inspire implementation of strategies for motivating youth to try new games and sports that they can sustain through the adolescent years and beyond.
青少年肥胖与身体活动减少有关，而关于中小学儿童身体活动水平的数据有限。
2005年5月，我们利用佛罗里达州萨拉索塔县社区、学区和大学之间的合作关系，通过一项低干扰性调查来评估青少年（9至13岁）的身体活动水平，并衡量青少年对疾病控制与预防中心的VERB计划的认知与身体活动参与之间的关系。在对参与调查的学校（4所小学和3所中学）进行调查后，我们获得了5至7年级学生的1407份回复。
总体而言，83.1%的学生达到了联邦政府关于每日参与高强度身体活动（VPA）的建议，58.6%的学生在过去两个月内尝试了新的游戏或运动。前一周参与VPA的天数，男孩（5.22天）显著高于女孩（4.35天）（P <.001）。6年级学生（4.93天）前一周参与VPA的天数显著高于7年级学生（4.54天）（P =.006），但各年级之间没有出现持续下降的情况。活动与报告每天玩游戏或运动的朋友数量显著相关（r =.369，P <.001）。大多数学生（88.8%）表示看过、读过或听过关于VERB的信息或广告，VERB是一项以青少年为中心的全国性社会营销活动，旨在促进身体活动以及参与新的游戏和运动。
尽管参与VPA的比例较高，但女孩报告参与VPA的天数明显少于男孩。我们发现参与VPA与有活跃的朋友之间存在适度关联。利用多个社区组织的领导力来监测青少年身体活动，可能会激发实施相关策略，激励青少年尝试新的游戏和运动，并在青少年时期及以后持续保持。
