学校旅行对 11-12 岁儿童日常身体活动的贡献。

Contribution of the school journey to daily physical activity in children aged 11-12 years.

机构信息

Centre for Exercise, Nutrition and Health Sciences, University of Bristol, United Kingdom.

出版信息

Am J Prev Med. 2012 Aug;43(2):201-4. doi: 10.1016/j.amepre.2012.04.015.

DOI:10.1016/j.amepre.2012.04.015

PMID:22813686

Abstract

BACKGROUND

Active travel is a possible method to increase physical activity in children, but the precise contribution of walking to school to daily physical activity is unclear.

PURPOSE

To combine accelerometer and GPS data to quantify moderate-to-vigorous physical activity (MVPA) on the walk to and from school in relation to overall daily levels.

METHODS

Participants were 141 children aged 11-12 years from the PEACH Project (Personal and Environmental Associated with Children's Health) in Bristol, England, measured between 2008 and 2009. Eighty-four children met the inclusion criteria and were included in the final analysis. Accelerometers measured physical activity, GPS receivers recorded location, and mode of travel was self-reported. Data were analyzed between April and October 2011. Combined accelerometer and GPS data were mapped in a GIS. Minutes of MVPA were compared for school journeys taking place between 8:00 AM and 9:00 AM and between 3:00 PM and 5:00 PM and in relation to whole-day levels.

RESULTS

Physical activity levels during journeys to and from school were highly similar, and contributed 22.2 minutes (33.7%) of total daily MVPA. In addition, MVPA on the journey did not differ between boys and girls, but because girls have lower levels of daily physical activity than boys, the journey contributed a greater proportion of their daily MVPA (35.6% vs 31.3%).

CONCLUSIONS

The journey to and from school is a significant contributor to MVPA in children aged 11-12 years. Combining GPS and accelerometer data within a GIS is a useful approach to quantifying specific journeys.

摘要

背景

积极出行是增加儿童身体活动的一种可能方法，但步行上学对日常身体活动的确切贡献尚不清楚。

目的

结合加速度计和 GPS 数据，定量分析往返学校步行过程中的中等到剧烈身体活动（MVPA）与整体日常水平的关系。

方法

参与者为来自英国布里斯托尔 PEACH 项目（个人和环境与儿童健康相关）的 141 名 11-12 岁儿童，于 2008 年至 2009 年进行了测量。84 名儿童符合纳入标准并纳入最终分析。加速度计测量身体活动，GPS 接收器记录位置，出行方式为自我报告。数据于 2011 年 4 月至 10 月进行分析。将加速度计和 GPS 数据结合起来，并在 GIS 中进行映射。比较上午 8:00 至 9:00 和下午 3:00 至 5:00 之间上下学的 MVPA 分钟数，并与全天水平进行比较。