比利时 10-12 岁儿童中 UP4FUN 试点干预对客观测量的久坐时间和身体活动的影响：ENERGY 项目。
The effect of the UP4FUN pilot intervention on objectively measured sedentary time and physical activity in 10-12 year old children in Belgium: the ENERGY-project.
机构信息
Department of Movement and Sport Sciences, Ghent University, Ghent, Belgium.
出版信息
BMC Public Health. 2012 Sep 18;12:805. doi: 10.1186/1471-2458-12-805.
UNLABELLED
BAKCKGROUND: The first aim was to examine the effect of the UP4FUN pilot intervention on children's total sedentary time. The second aim was to investigate if the intervention had an effect on children's physical activity (PA) level. Finally, we aimed to investigate demographic differences (i.e. age, gender, ethnicity, living status and having siblings) between children in the intervention group who improved in sedentary time and PA at post-test and children in the intervention group who worsened in sedentary time and PA at post-test.
METHODS
The six weeks UP4FUN intervention was tested in a randomized controlled trial with pre-test post-test design with five intervention and five control schools in Belgium and included children of the 5th and 6th grade. The children wore accelerometers for seven days at pre- and post-test. Analyses included children with valid accelerometer data for at least two weekdays with minimum 10h-wearing time and one weekend day with 8h-wearing time.
RESULT
Final analyses included 372 children (60% girls, mean age = 10.9 ± 0.7 years). There were no significant differences in the change in sedentary time or light PA between intervention and control schools for the total sample or for the subgroup analyses by gender. However, children (specifically girls) in the intervention group had a higher decrease in moderate-to-vigorous PA than children in the control group. In the intervention group, children who lived with both parents and children with one or more siblings were less likely to reduce sedentary time after exposure to the intervention. Older children, girls and children who lived with both parents were less likely to increase light PA after the intervention.
CONCLUSION
The UP4FUN intervention did not result in an effect on children's sedentary time. Based on the high amounts of accelerometer-derived sedentary time in this age group, more efforts are needed to develop strategies to reduce children's sedentary time.
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背景
第一个目的是检验 UP4FUN 试点干预对儿童总久坐时间的影响。第二个目的是调查干预是否对儿童的身体活动（PA）水平有影响。最后，我们旨在研究干预组中在干预后久坐时间和 PA 得到改善的儿童和干预后久坐时间和 PA 恶化的儿童之间的人口统计学差异（即年龄、性别、种族、居住状况和是否有兄弟姐妹）。
方法
这项为期六周的 UP4FUN 干预措施在比利时的一项随机对照试验中进行了测试，采用了预测试-后测试设计，有五个干预组和五个对照组学校，参与者为五年级和六年级的儿童。儿童在预测试和后测试期间佩戴加速度计七天。分析包括至少有两个工作日（至少 10 小时佩戴时间）和一个周末（至少 8 小时佩戴时间）有有效加速度计数据的儿童。
结果
最终分析包括 372 名儿童（60%为女孩，平均年龄为 10.9±0.7 岁）。对于总样本或按性别进行的亚组分析，干预组和对照组之间的久坐时间或轻度 PA 的变化没有显著差异。然而，干预组的儿童（尤其是女孩）比对照组的儿童有更高的中度到剧烈 PA 的减少。在干预组中，与父母同住的儿童和有一个或多个兄弟姐妹的儿童不太可能在接触干预后减少久坐时间。年龄较大的儿童、女孩和与父母同住的儿童在干预后不太可能增加轻度 PA。
结论
UP4FUN 干预措施并没有对儿童的久坐时间产生影响。考虑到这个年龄段的加速度计-derived 久坐时间的数量很高，需要更多的努力来制定策略来减少儿童的久坐时间。
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