Increasing physical activity in young primary school children-it's child's play: A cluster randomised controlled trial
Increasing physical activity in young primary school children-it's child's play: A cluster randomised controlled trial
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DOI：
10.1016/j.ypmed.2013.02.007
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发表时间：
2013-05-01
影响因子：
5.1
通讯作者：
van der Ploeg, Hidde P.
中科院分区：
文献类型：
--
作者：
Engelen, Lina;Bundy, Anita C.;van der Ploeg, Hidde P.
Objective.探讨一种创新的以学校为基础的干预措施对增加身体活动的影响。从12所澳大利亚小学中随机选择226名儿童（5-7岁）参加一项整群随机试验，学校随机分配到干预或对照条件下。为期13周的干预包括：（1）通过引入松散的材料改变学校操场和（2）教师-家长干预探索与儿童自由游戏相关的风险感知。主要结果是总加速度计计数和休息时间的中等强度体力活动。测试于2009- 2010年在悉尼进行。在基线时对221名参与者进行了测试。混合效应多水平回归显示，干预后总计数有小幅但显著的增加（9400计数，95% CI 3.5-152，p=0.002）和MVPA分钟数（1.8 mm，95% CI 0.5-3.1，p=0.006）;休息时间内久坐活动减少（2.1 mm，95% CI 0.5-3.8，p=0.01）。2年后，我们对一所干预学校的儿童进行了重新测试;他们保持了收益。抓住孩子们玩耍的内在动机，同时帮助成年人重新考虑自由玩耍的风险，在休息时间增加身体活动。使用加速度计作为身体活动的唯一衡量标准可能会低估其影响。试验注册号：ACTRN 12611000089932。(C)2013 Elsevier Inc. All rights reserved.
Objective. To explore the effects of an innovative school-based intervention for increasing physical activity.Methods. 226 children (5-7 years old) randomly selected from 12 Australian primary schools were recruited to a cluster randomised trial with schools randomly allocated to intervention or control conditions. The 13-week intervention comprised: (1) altering the school playground by introducing loose materials and (2) a teacher-parent intervention exploring perceptions of risk associated with children's free play. The primary outcomes were total accelerometer counts and moderate-vigorous physical activity during break times. Testing took place in Sydney, 2009-2010.Results. 221 participants were tested at baseline. Mixed-effect multilevel regression revealed a small but significant increase from the intervention on total counts (9400 counts, 95% CI 3.5-152, p=0.002) and minutes of MVPA (1.8 mm, 95% CI 0.5-3.1, p=0.006); and a decrease in sedentary activity (2.1 mm, 95% CI 0.5-3.8, p=0.01) during break times. We retested children in one intervention school after 2 years; they maintained the gains.Conclusions. Capturing children's intrinsic motivations to play while simultaneously helping adults reconsider views of free play as risky provided increases in physical activity during break times. Using accelerometry as the sole measure of physical activity may underestimate the effect. Trial registration: ACTRN12611000089932. (C) 2013 Elsevier Inc. All rights reserved.