Springer Andrew E, Hoelscher Deanna M, Castrucci Brian, Perez Adriana, Kelder Steven H
Michael & Susan Dell Center for Advancement of Healthy Living, University of Texas School of Public Health, Austin Regional Campus, 313 E 12th St, Ste 220, Austin, TX 78701, USA.
Prev Chronic Dis. 2009 Jan;6(1):A21. Epub 2008 Dec 15.
Research on geographic differences in children's physical activity (PA) engagement is limited. This study examined the prevalence of PA and sedentary behaviors in a probability sample of children in the 4th (mean age, 9.7 years; n = 7,907), 8th (mean age, 13.7 years; n = 8,827), and 11th (mean age 16.9 years; n = 6,456) grades by urban, suburban, and rural location in Texas.
Using data from the 2004-2005 School Physical Activity and Nutrition (SPAN) study, we conducted logistic regression analyses stratified by sex to assess associations of 6 PA indicators and 2 sedentary behavior indicators with metropolitan status.
Urban 8th- and 11th-grade students reported the lowest prevalence of PA. Suburban or rural schools were significantly more likely than their urban counterparts to report higher school-based sports team participation in 8th graders (P = .001); higher vigorous PA (P = .01) and strengthening exercise (P = .01) in 11th-grade boys; and higher physical education attendance in 4th (P < .01) and 11th graders (P = .05). Sports team (P = .04) and other organized PA participation (P = .04) in urban 4th-grade girls and vigorous PA in urban 8th-grade boys (P = .04) were the only behaviors for which a significantly higher prevalence was reported compared with nonurban counterparts. We observed few significant geographic differences in prevalence of television watching and video game playing.
Several significant differences in PA behaviors were found by metropolitan status in this sample of public school students in Texas. Research is needed on availability of PA opportunities and PA barriers by metropolitan status to better understand the lower prevalence estimates reported in older urban children.
关于儿童身体活动（PA）参与情况的地理差异研究有限。本研究调查了德克萨斯州城市、郊区和农村地区四年级（平均年龄9.7岁；n = 7907）、八年级（平均年龄13.7岁；n = 8827）和十一年级（平均年龄16.9岁；n = 6456）儿童概率样本中的PA和久坐行为的流行情况。
利用2004 - 2005年学校体育活动与营养（SPAN）研究的数据，我们进行了按性别分层的逻辑回归分析，以评估6项PA指标和2项久坐行为指标与大都市地位之间的关联。
城市八年级和十一年级学生报告的PA流行率最低。郊区或农村学校比城市学校更有可能报告八年级学生更高的校队体育参与率（P = 0.001）；十一年级男生更高的剧烈PA（P = 0.01）和强化锻炼（P = 0.01）；以及四年级（P < 0.01）和十一年级学生（P = 0.05）更高的体育课出勤率。城市四年级女生的校队参与（P = 0.04）和其他有组织的PA参与（P = 0.04）以及城市八年级男生的剧烈PA（P = 0.04）是与非城市同龄人相比报告流行率显著更高的仅有的行为。我们观察到在看电视和玩电子游戏的流行率方面几乎没有显著的地理差异。
在德克萨斯州的这个公立学校学生样本中，按大都市地位发现了PA行为的几个显著差异。需要研究按大都市地位划分的PA机会的可及性和PA障碍，以更好地理解城市大龄儿童报告的较低流行率估计值。
