Adamo Kristi Bree, Wasenius Niko Sebastian, Grattan Kimberly Paige, Harvey Alysha Leila Jean, Naylor Patti-Jean, Barrowman Nicolas James, Goldfield Gary Scott
School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada; Healthy Active Living and Obesity (HALO) Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada.
School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada; Folkhälsan Research Center, Helsinki, Finland.
J Pediatr. 2017 Sep;188:42-49.e2. doi: 10.1016/j.jpeds.2017.05.082. Epub 2017 Jun 27.
To investigate the effect of a preschool physical activity intervention program delivered in licensed childcare settings, with or without a parent-facilitated home component, on children's daily physical activity, sedentary time, and body composition.
For this cluster randomized controlled trial, 18 childcare centers were randomly allocated in equal numbers to the typical curriculum comparison group, childcare intervention alone (CC), or childcare intervention with parental involvement. Accelerometers were used to asses physical activity and sedentary time, and body composition was measured by bioelectrical impedance.
Linear mixed model regression analyses showed no differences between the CC, the childcare intervention with parental involvement, and the comparison groups in changes from baseline to 6 months in total physical activity (P for time × group interaction = .665) or moderate-to-vigorous physical activity (P for time × group interaction = .164) when adjusted for baseline physical activity levels. Furthermore, no group differences were found for changes in light physical activity, sedentary time, or anthropometric variables.
An affordable and easily scalable preschool intervention program delivered in licensed childcare settings, with or without the addition of a parent-driven home physical activity promotion, seems to have no significant effect on physical activity, sedentary time, or body composition.
ISRCTN: ISRCTN94022291.
探讨在持牌托儿机构实施的学前体育活动干预计划（有无家长辅助的家庭部分）对儿童日常体育活动、久坐时间和身体成分的影响。
在这项整群随机对照试验中，18所托儿中心被等数量随机分配到典型课程比较组、仅托儿干预组（CC）或有家长参与的托儿干预组。使用加速度计评估体育活动和久坐时间，通过生物电阻抗测量身体成分。
线性混合模型回归分析显示，在根据基线体育活动水平进行调整后，CC组、有家长参与的托儿干预组和比较组在从基线到6个月期间总体育活动（时间×组间交互作用P = 0.665）或中度至剧烈体育活动（时间×组间交互作用P = 0.164）的变化方面没有差异。此外，在轻度体育活动、久坐时间或人体测量变量的变化方面未发现组间差异。
在持牌托儿机构实施的一项经济实惠且易于扩展的学前干预计划，无论是否增加家长主导的家庭体育活动促进内容，似乎对体育活动、久坐时间或身体成分均无显著影响。
ISRCTN：ISRCTN94022291。
