Relation of School Environment and Policy to Adolescent Physical Activity
Relation of School Environment and Policy to Adolescent Physical Activity
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DOI：
10.1111/j.1746-1561.2008.00384.x
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发表时间：
2009-04-01
影响因子：
2.2
通讯作者：
Sallis, James F.
中科院分区：
文献类型：
--
作者：
Durant, Nefertiti;Harris, Sion K.;Sallis, James F.
身体活动（PA）随着儿童和青少年年龄的增长而下降。本研究的目的是探讨学校因素与青少年PA、看电视和身体质量指数（BMI）的关系。（N = 165，53%女性，平均年龄14.6 +/- 1.7岁，44%非白人）完成调查，评估每周体育课天数、学校设备可及性，课后监督私人助理和课后实地访问回归分析，以探讨这些学校因素和PA在学校设施向公众开放之间的关系（从不活动vs活动），总体PA水平（每周进行60分钟体力活动的天数）、BMI z评分和看电视调整人口统计学因素，每周体育日数和放学后进入学校领域与总体PA相关。（分别为β = 0.286，p = 0.002，半偏相关系数0.236和β = 0.801，p = 0.016，半偏相关系数0.186）。放学后的实地访问和整体PA之间的关联调解使用公共访问的学校设施PA。课后监督PA和学校PA设备与整体PA无关。在包括所有学校因素的调整回归分析中，体育日数与总体PA独立于其他学校因素相关（β = 0.264，p = 0.007，半偏相关= 0.136）。学校因素和BMI或看电视之间没有关联。基于这些研究结果，体育是一种很有前途的干预措施，以解决改善整体青少年PA在学校设置。
Physical activity (PA) declines as children and adolescents age. The purpose of this study was to examine how specific school factors relate to youth PA, TV viewing, and body mass index (BMI).A sample of 12- to 18-year-old adolescents in 3 cities (N = 165, 53% females, mean age 14.6 +/- 1.7 years, 44% nonwhite) completed surveys assessing days of physical education (PE) class per week, school equipment accessibility, after-school supervised PA, and after-school field access. Regression analyses were conducted to examine relationships between these school factors and PA at school facilities open to the public (never active vs active), overall PA level (days per week physically active for 60 minutes), BMI z score, and TV watching (hours per week).Adjusting for demographics, days of PE per week and access to school fields after school were correlated with overall PA (beta = 0.286, p = .002, semipartial correlation .236 and beta = 0.801, p = .016, semipartial correlation .186, respectively). The association between after-school field access and overall PA was mediated by use of publicly accessible school facilities for PA. After-school supervised PA and school PA equipment were not associated with overall PA. In adjusted regression analyses including all school factors, days of PE remained correlated to overall PA independent of other school factors (beta = 0.264, p = .007, semipartial correlation = .136). There were no associations between school factors and BMI or TV watching.Based on these study findings, PE is a promising intervention to address improving overall adolescent PA within the school setting.