Department of Community Health and Epidemiology, University of Saskatchewan, Saskatoon, SK S7N 5E5, Canada.
School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's, NL A1C 5S7, Canada.
Int J Environ Res Public Health. 2021 Feb 18;18(4):1968. doi: 10.3390/ijerph18041968.
There is little understanding of how the built environment shapes activity behaviours in children over different seasons. This study sought to establish how seasonal weather patterns, in a given year in a mid-western Canadian city, affect sedentary time (SED) in youth and how the relationship between season and SED are moderated by the built environment in their home neighbourhood. Families with children aged 9-14 years were recruited from the prairie city of Saskatoon, Canada. Location-specific, device-based SED was captured in children during three timeframes over a one-year period using GPS-paired accelerometers. Multilevel models are presented. Children accumulated significantly greater levels of SED in spring but significantly less SED in the fall months in comparison to the winter months. Children living in neighbourhoods with the highest density of destinations accumulated significantly less SED while in their home area in comparison to their counterparts, and this effect was more pronounced in the spring and summer months. On weekends, the rise in sedentariness within the home area was completely diminished in children living in neighbourhoods with the greatest number of destinations and highest activity friendliness. These results suggested that increasing neighbourhood amenities can lead to a reduced sedentariness of youth, though more so in the warmers months of the year.
对于建筑环境如何在不同季节塑造儿童的活动行为，人们知之甚少。本研究旨在探讨在加拿大中西部一个城市的某一年中，季节性天气模式如何影响青少年的久坐时间（SED），以及季节与 SED 之间的关系如何受到家庭居住环境的调节。研究人员从加拿大草原城市萨斯卡通招募了 9-14 岁的儿童及其家庭。在一年的时间内，使用 GPS 配对的加速度计在三个时间框架内对儿童的特定地点、基于设备的 SED 进行了捕获。本研究呈现了多层次模型。与冬季相比，儿童在春季的 SED 水平明显更高，而在秋季的 SED 水平明显更低。与同龄人相比，生活在目的地密度最高的社区的儿童在其家庭区域的 SED 水平明显更低，而这种影响在春季和夏季更为明显。在周末，在目的地数量最多且活动友好度最高的社区中，儿童在家中的久坐时间增加完全减少了。这些结果表明，增加社区设施可以减少青少年的久坐时间，但在一年中温暖的月份效果更为明显。
