University of California, San Francisco, Department of Pediatrics, CA, USA.
Prev Chronic Dis. 2013 Aug 22;10:E142. doi: 10.5888/pcd10.130108.
School physical education (PE) has been identified as a critical public health tool to increase physical activity among youths. We sought to objectively assess compliance with PE quantity mandates and quality recommendations in a large urban California school district.
We collected PE schedules and systematically observed PE lessons (n=154) in 20 elementary, 4 middle, and 4 high schools from February through May 2011.
On the basis of schools' master schedules, 83% of elementary schools met the California state mandate of 100 PE minutes per week. Teachers' actual schedules indicated that 20% of schools met the mandate, and observation showed that only 5% were in compliance. All middle and high schools met the mandated 200 minutes per week. On average, classes at all school levels met the recommended 50% of PE lesson time in moderate-to-vigorous physical activity. No teacher- or school-level factors significantly predicted PE quantity, but credentialed elementary PE teachers spent more time building students' motor skills.
Our results suggest that current national estimates of PE, which are based on schools' self-report, overestimate the amount of PE provided in elementary schools. Although more than half of PE class time was spent in moderate-to-vigorous physical activity, total physical activity in elementary schools from PE is minimal and may do little to contribute to students' overall health.
学校体育(PE)已被确定为增加青少年体育活动的重要公共卫生工具。我们试图客观地评估加利福尼亚州一个大型城市学区内的体育课数量规定和质量建议的遵守情况。
我们收集了体育课表,并于 2011 年 2 月至 5 月在 20 所小学、4 所初中和 4 所高中系统地观察了体育课(n=154)。
根据学校总课表,83%的小学符合加利福尼亚州每周 100 分钟体育课的规定。教师实际的课程表显示,只有 20%的学校符合规定,而观察结果显示,只有 5%的学校符合规定。所有初中和高中都符合每周 200 分钟的规定。平均而言,所有学校级别的课程都符合体育课时间的 50%用于中等到剧烈的体育活动的建议。没有教师或学校层面的因素显著预测体育课的数量,但获得认证的小学体育教师花更多的时间来培养学生的运动技能。
我们的结果表明,目前基于学校自我报告的全国体育课估计值过高估计了小学提供的体育课数量。尽管超过一半的体育课时间用于中等到剧烈的体育活动,但小学体育课的总体育活动量很小,可能对学生的整体健康贡献不大。