Chuang Ru-Jye, Sharma Shreela V, Perry Cheryl, Diamond Pamela
1 Department of Epidemiology, Human Genetics & Environmental Sciences, School of Public Health, University of Texas Health Science Center, Houston, TX, USA.
2 Michael and Susan Dell Center for Healthy Living, Houston, TX, USA.
Am J Health Promot. 2018 Feb;32(2):344-348. doi: 10.1177/0890117117700952. Epub 2017 Mar 30.
To explore whether the physical activity (PA) component of the Coordinated Approach to Child Health Early Childhood (CATCH EC) program helps increasing preschoolers' PA during active times at preschool.
Nonrandomized controlled experimental study.
Head Start centers in Houston, Texas, 2009 to 2010 school year.
A total of 439 preschoolers aged 3 to 5 years (3 intervention centers, n = 220; 3 comparison centers, n = 219).
The CATCH EC preschool-based teacher-led nutrition and PA program.
Preschoolers' PA was measured at baseline and postintervention using the System for Observing Fitness Instruction Time-Preschool version, a direct observation method measuring PA at the classroom level. Parent surveys provided demographic data.
Pre-to-post changes in preschoolers' PA were examined using the Mann-Whitney U test.
Results show a significant decrease in the percentage time preschoolers spent in level 2 PA (low activity) at intervention ( P = .005) and comparison ( P = .041) centers. Indoor vigorous activity increased significantly on an average by +6.04% pre-to-post intervention among preschoolers in the intervention group ( P = .049); no significant change was found in the comparison group.
The CATCH EC favorably increased indoor vigorous PA level among low-income children attending Head Start.
探讨儿童健康早期协调方法（CATCH EC）项目中的身体活动（PA）部分是否有助于增加学龄前儿童在幼儿园活动时间的身体活动量。
非随机对照实验研究。
德克萨斯州休斯顿的启蒙计划中心，2009至2010学年。
共439名3至5岁的学龄前儿童（3个干预中心，n = 220；3个对照中心，n = 219）。
由教师主导的基于CATCH EC幼儿园营养与身体活动项目。
使用观察健身教学时间系统-学龄前版在基线和干预后测量学龄前儿童的身体活动量，这是一种在课堂层面测量身体活动量的直接观察方法。家长调查问卷提供人口统计学数据。
使用曼-惠特尼U检验检查学龄前儿童身体活动量从干预前到干预后的变化。
结果显示，在干预中心（P = .005）和对照中心（P = .041），学龄前儿童处于2级身体活动（低活动量）的时间百分比显著下降。干预组学龄前儿童干预前后室内剧烈活动平均显著增加了+6.04%（P = .049）；对照组未发现显著变化。
CATCH EC项目有利于提高参加启蒙计划的低收入儿童的室内剧烈身体活动水平。
