Directly observed physical activity levels in preschool children
Directly observed physical activity levels in preschool children
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DOI：
10.1111/j.1746-1561.2008.00327.x
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发表时间：
2008-08-01
影响因子：
2.2
通讯作者：
Addy, Cheryl
中科院分区：
文献类型：
--
作者：
Pate, Russell R.;McIver, Kerry;Addy, Cheryl
背景技术背景：数以百万计的幼儿参加学前教育和其他结构化的儿童发展计划，但很少有人知道他们的身体活动水平，而在这些设置。本研究的目的是描述的身体活动水平和人口统计学和学校相关的身体活动在学龄前儿童参加，使用直接观察measurementsystem.METHODS：观察系统记录身体活动在儿童-学龄前版本被用来测量身体活动水平和相关因素在493个3- 5岁的儿童在24个学龄前学校。每个孩子至少有600个30秒的观察间隔。身体（身高/体重）和人口学数据也被collected.RESULTS：儿童从事中度到剧烈的体力活动（MVPA）在不到3%的观察间隔，久坐不动超过80%的观察间隔。男孩比女孩更有可能参与MVPA（p = .01），3岁男孩比4岁和5岁男孩更活跃（p = .01）。学前教育的孩子参加解释27%的变异活动levels.CONCLUSIONS：这项研究表明，幼儿在他们的大部分时间在学前教育的身体不活跃。孩子参加的学前班是比任何其他因素更强的身体活动水平预测因子。需要进行更多的研究，以确定儿童更活跃的学龄前学校的特点。
BACKGROUND: Millions of young children attend preschools and other structured child development programs, but little is known about their physical activity levels while in those settings. The purpose of this study was to describe the physical activity levels and demographic and school-related correlates of physical activity in children attending preschools, using a direct observation measurement system.METHODS: The Observational System for Recording Physical Activity in Children-Preschool Version was used to measure physical activity levels and related factors in four hundred ninety-three 3- to 5-year-old children in 24 preschools. A minimum of six hundred 30-second observation intervals were recorded for each child. Physical (height/weight) and demographic data also were collected.RESULTS: Children engaged in moderate-to-vigorous physical activity (MVPA) during less than 3% of the observation intervals and were sedentary during more than 80% of the observation intervals. Boys were more likely than girls to engage in MVPA (p = .01), and 3-year-old boys were more active than 4- and 5-year-old boys (p = .01). The preschool that a child attended explained 27% of the variance in activity levels.CONCLUSIONS: The study indicates that young children are physically inactive during most of their time in preschool. The preschool that a child attended was a stronger predictor of physical activity level than any other factor examined. Additional research is needed to identify the characteristics of preschools in which children are more active.