MRC Epidemiology Unit, Institute of Metabolic Science, Box 285, Addenbrooke's Hospital, Cambridge, CB2 0QQ, United Kingdom.
Prev Med. 2012 Mar-Apr;54(3-4):224-8. doi: 10.1016/j.ypmed.2012.01.006. Epub 2012 Jan 18.
To examine associations between mode of travel to non-school destinations and physical activity in schoolchildren.
Analyses of data from SPEEDY, an observational study of 9-10 year old British children. In summer 2007, children reported their usual mode of travel to four destinations (to visit family, friends, the park or the shops) and wore accelerometers for at least three days. Time spent in moderate to vigorous physical activity (MVPA) was computed for the following time segments: daily, after school, weekend and out-of-school. Associations between mode of travel and physical activity were assessed using adjusted two-level multiple regression models stratified by sex.
1859 pupils provided valid data. Boys who used active modes of travel spent significantly more time in MVPA in all time segments than boys who used passive modes. The median daily time spent in MVPA was 87 minutes (IQR 68-106) for active travellers and 76 minutes (IQR 60-93) for passive travellers. In girls, median time spent in MVPA after school was significantly higher in the active (34 minutes (IQR 27-44)) than the passive travellers (29 minutes (IQR 22-37)).
Active travel to non-school destinations is associated with higher overall physical activity levels in 9-10 year old schoolchildren.
研究非上学目的地出行方式与学童身体活动之间的关联。
对英国 9-10 岁儿童进行的 SPEEDY 观察性研究的数据进行分析。在 2007 年夏季，孩子们报告了他们前往四个目的地（探亲访友、去公园或去商店）的通常出行方式，并佩戴加速度计至少三天。计算了以下时间段内的中等到剧烈身体活动（MVPA）时间：每天、放学后、周末和校外。采用按性别分层的调整两水平多回归模型评估出行方式与身体活动之间的关联。
1859 名学生提供了有效数据。使用主动出行方式的男孩在所有时间段的 MVPA 时间明显多于使用被动出行方式的男孩。主动出行者的每日 MVPA 中位数时间为 87 分钟（IQR 68-106），而被动出行者为 76 分钟（IQR 60-93）。在女孩中，主动出行者（34 分钟（IQR 27-44））放学后的 MVPA 中位数时间明显高于被动出行者（29 分钟（IQR 22-37））。
前往非上学目的地的主动出行与 9-10 岁学童的整体较高身体活动水平相关。
