The Center for Physical Activity and Weight Management, The Schiefelbusch Institute for Lifespan Studies, 1301 Sunnyside Ave, Rm 100 Robinson Center, University of Kansas, Lawrence, KS 66045, USA.
Prev Med. 2009 Oct;49(4):336-41. doi: 10.1016/j.ypmed.2009.07.022. Epub 2009 Aug 6.
Physical Activity Across the Curriculum (PAAC) was a three-year cluster randomized controlled trial to promote physical activity and diminish increases in overweight and obesity in elementary school children.
Twenty-four elementary schools were cluster randomized to the Physical Activity Across the Curriculum intervention or served as control. All children in grades two and three were followed to grades four and five. Physical Activity Across the Curriculum promoted 90 min/wk of moderate to vigorous intensity physically active academic lessons delivered by classroom teachers. Body Mass Index was the primary outcome, daily Physical activity and academic achievement were secondary outcomes.
The three-year change in Body Mass Index for Physical Activity Across the Curriculum was 2.0+/-1.9 and control 1.9+/-1.9, respectively (NS). However, change in Body Mass Index from baseline to 3 years was significantly influenced by exposure to Physical Activity Across the Curriculum. Schools with > or =75 min of Physical Activity Across the Curriculum/wk showed significantly less increase in Body Mass Index at 3 years compared to schools that had <75 min of Physical Activity Across the Curriculum (1.8+/-1.8 vs. 2.4+/-2.0, p=0.02). Physical Activity Across the Curriculum schools had significantly greater changes in daily Physical activity and academic achievement scores.
The Physical Activity Across the Curriculum approach may promote daily Physical activity and academic achievement in elementary school children. Additionally, 75 min of Physical Activity Across the Curriculum activities may attenuate increases in Body Mass Index.
贯穿课程的身体活动（PAAC）是一项为期三年的群组随机对照试验，旨在促进小学生的身体活动并减少超重和肥胖的发生率。
将 24 所小学按照群组随机分为贯穿课程的身体活动干预组或对照组。所有二年级和三年级的学生均随访至四年级和五年级。贯穿课程的身体活动旨在通过课堂教师教授 90 分钟/周的中等到剧烈强度的身体活动课程来促进身体活动。身体质量指数是主要结局，日常身体活动和学业成绩是次要结局。
贯穿课程的身体活动组的身体质量指数三年变化为 2.0+/-1.9，对照组为 1.9+/-1.9，差异无统计学意义（NS）。然而，身体质量指数从基线到 3 年的变化明显受到贯穿课程的身体活动的影响。每周接受>或=75 分钟贯穿课程的身体活动的学校，与每周接受<75 分钟贯穿课程的身体活动的学校相比，3 年后身体质量指数的增长明显较少（1.8+/-1.8 与 2.4+/-2.0，p=0.02）。贯穿课程的身体活动组的日常身体活动和学业成绩的变化明显更大。
贯穿课程的身体活动方法可能会促进小学生的日常身体活动和学业成绩。此外，每周进行 75 分钟的贯穿课程的身体活动可能会减轻身体质量指数的增加。
