Contribution of physical education to overall physical activity
Contribution of physical education to overall physical activity
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DOI：
10.1111/j.1600-0838.2011.01425.x
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发表时间：
2013-10-01
影响因子：
4.1
通讯作者：
Kriemler, S.
中科院分区：
文献类型：
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作者：
Meyer, U.;Roth, R.;Kriemler, S.
对于许多孩子来说，体育课期间的体育活动 (PA) 提供了进行身体活动的重要机会。尽管 PE 期间的 PA 已被证明较低，但人们对 PE 期间 PA 对整体 PA 的贡献知之甚少。因此，目的是评估儿童体育运动期间的体力活动，并确定体育运动对整体体力活动的贡献，特别关注超重儿童。在 59 个随机选择的班级中，在 4-7 天内对 676 名儿童（9.3 +/- 2.1 岁）进行了加速度计测量。通过回归模型计算 PE 期间的中度剧烈 PA (MVPA；2000 次/分钟) (MVPA(PE))、每天的总体 MVPA (MVPA(DAY)) 以及有和没有 PE 的天数比较，其中性别、年级和体重状态（正常与超重）作为固定因素，类别作为随机因素。儿童在 MVPA 中花费了 32.8 +/- 15.1% 的体育时间。体重状况与 MVPA(PE) 无关。 MVPA(PE) 占 MVPA(DAY) 的 16.8 +/- 8.5%，在超重儿童中占 17.5 +/- 8.2%。所有儿童在有 PE 的日子比没有 PE 的日子更加活跃（差异：MVPA（天）的 16.1 +/- 29.0 分钟；P0.001；超重儿童为 13.7 +/- 28.0 分钟）。尽管 MVPA(PE) 较低，但 PE 在提供 PA 方面发挥了相当大的作用，并且不能通过减少课外 MVPA 来补偿。
For many children, physical activity (PA) during physical education (PE) lessons provides an important opportunity for being physically active. Although PA during PE has been shown to be low, little is known about the contribution of PA during PE to overall PA. The aim was therefore to assess children's PA during PE and to determine the contribution of PE to overall PA with special focus on overweight children. Accelerometer measurements were done in 676 children (9.3 +/- 2.1 years) over 4-7 days in 59 randomly selected classes. Moderate-and-vigorous PA (MVPA;2000 counts/min) during PE (MVPA(PE)), overall MVPA per day (MVPA(DAY)), and a comparison of days with and without PE were calculated by a regression model with gender, grade, and weight status (normal vs overweight) as fixed factors and class as a random factor. Children spent 32.8 +/- 15.1% of PE time in MVPA. Weight status was not associated to MVPA(PE). MVPA(PE) accounted for 16.8 +/- 8.5% of MVPA(DAY), and 17.5 +/- 8.2% in overweight children. All children were more active on days with PE than on days without PE (differences: 16.1 +/- 29.0min of MVPA(DAY); P0.001; 13.7 +/- 28.0min for overweight children). Although MVPA(PE) was low, PE played a considerable role in providing PA and was not compensated by reducing extracurricular MVPA.