Centre for Motivation and Health Behaviour Change, Department for Health, University of Bath, Bath, UK.
Pennington Biomedical Research Center, Baton Rouge, USA.
BMC Public Health. 2018 Apr 5;18(1):456. doi: 10.1186/s12889-018-5382-0.
Time spent outdoors is associated with higher physical activity levels among children, yet it may be threatened by parental safety concerns and the attraction of indoor sedentary pursuits. The purpose of this study was to explore the relationships between these factors and outdoor time during children's discretionary periods (i.e., after school and over the weekend).
Data from 462 children aged 9-11 years old were analysed using generalised linear mixed models. The odds of spending > 1 h outdoors after school, and > 2 h outdoors on a weekend were computed, according to demographic variables, screen-based behaviours, media access, and parental safety concerns. Interactions with sex and socioeconomic status (SES) were explored.
Boys, low SES participants, and children who played on their computer for < 2 h on a school day had higher odds of spending > 1 h outside after school than girls, high SES children and those playing on a computer for ≥2 h, respectively. Counterintuitive results were found for access to media devices and crime-related safety concerns as both of these were positively associated with time spent outdoors after school. A significant interaction for traffic-related concerns*sex was found; higher road safety concerns were associated with lower odds of outdoor time after school in boys only. Age was associated with weekend outdoor time, which interacted with sex and SES; older children were more likely to spend > 2 h outside on weekends but this was only significant among girls and high SES participants.
Our results suggest that specific groups of children are less likely to spend their free time outside, and it would seem that only prolonged recreational computer use has a negative association with children's outdoor time after school. Further research is needed to explore potential underlying mechanisms, and parental safety concerns in more detail.
儿童在户外活动的时间与他们更高的身体活动水平有关,但这可能会受到父母对安全的担忧和室内久坐活动的吸引力的威胁。本研究的目的是探索这些因素与儿童闲暇时间(即放学后和周末)户外活动时间之间的关系。
使用广义线性混合模型对 462 名 9-11 岁儿童的数据进行了分析。根据人口统计学变量、屏幕行为、媒体访问和父母安全担忧,计算了放学后户外活动时间超过 1 小时和周末户外活动时间超过 2 小时的几率。还探索了与性别和社会经济地位(SES)的交互作用。
男孩、低 SES 参与者和在上学日每天玩电脑<2 小时的儿童比女孩、高 SES 儿童和每天玩电脑≥2 小时的儿童更有可能在放学后户外活动超过 1 小时。媒体设备访问和与犯罪相关的安全问题的结果出人意料,因为这两者都与放学后户外活动时间呈正相关。还发现了与交通相关的安全问题*性别之间的显著交互作用;较高的道路安全问题与男孩放学后户外活动时间减少有关。年龄与周末户外活动时间有关,与性别和 SES 相互作用;年龄较大的儿童更有可能在周末户外活动超过 2 小时,但这仅在女孩和高 SES 参与者中显著。
我们的研究结果表明,特定群体的儿童更不可能在户外度过他们的闲暇时间,而且似乎只有长时间的娱乐性电脑使用与儿童放学后的户外活动时间呈负相关。需要进一步研究以更详细地探讨潜在的机制和父母的安全担忧。