Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Highway, Burwood, Geelong, VIC, 3125, Australia.
Department of Marketing, Faculty of Business and Economics, University of Antwerp, Antwerp, Belgium.
BMC Public Health. 2022 Aug 9;22(1):1512. doi: 10.1186/s12889-022-13947-7.
A high proportion of adolescents worldwide are not doing enough physical activity for health benefits. Replacing short motorised trips with walking or cycling has the potential to increase physical activity at the population level. This study aimed to estimate the proportion of short distance motorised trips that could be replaced with walking or cycling, and the potential physical activity gains by sociodemographic and trip characteristics.
Data were from a subsample of the NEighbourhood Activity in Youth (NEArbY) study conducted among adolescents in Melbourne. A total of 217 adolescents with at least one motorised trip completed a survey and wore a Global Positioning Systems (GPS) device for eight consecutive days. Classification of travel modes were based on speed. GPS data points were geocoded in ArcGIS. Motorised trips within walkable (1.3 km) and cyclable (4.2 km) distances were identified (threshold based on 80 percentile of walking and cycling trip distances among Victorian adolescents), and the additional physical activity minutes that could be accrued by replacing walkable or cyclable motorised trip to active trips were quantified. Multilevel linear regression was used to assess differences in physical activity minutes gain by sociodemographic and trip characteristics.
A total of 4,116 motorised trips were made. Of these, 17% were walkable and 61% were cyclable. Replacing motorised trips by walking and cycling resulted in estimated gains of six minutes and 15 min of physical activity per day, respectively.
The sizable proportion of replaceable trips and potential physical activity gains from this shift calls for attention to improve safe and connected infrastructure to support active travel.
全球很大一部分青少年的身体活动量不足，无法从中受益。将短途机动出行替换为步行或骑行，有可能提高人群的身体活动量。本研究旨在估算可由步行或骑行替换的短途机动出行比例，以及不同社会人口学和出行特征下潜在的身体活动量增益。
数据来自墨尔本青少年参与的“邻里活动中的青少年”（NEArbY）研究的一个子样本。共有 217 名至少有一次机动出行的青少年完成了一项调查，并在连续 8 天佩戴了全球定位系统（GPS）设备。出行方式的分类依据速度。GPS 数据点在 ArcGIS 中进行了地理编码。确定了在步行（1.3 公里）和骑行（4.2 公里）范围内的机动出行，并量化了通过将步行和骑行范围内的机动出行替换为积极出行，可额外获得的身体活动分钟数。采用多水平线性回归评估社会人口学和出行特征差异对身体活动分钟数增益的影响。
共进行了 4116 次机动出行。其中，17%是可步行的，61%是可骑行的。将机动出行替换为步行和骑行，估计每天可分别增加 6 分钟和 15 分钟的身体活动量。
大量可替换的出行以及由此带来的潜在身体活动量增益，需要引起重视，以改善安全和连通的基础设施，支持积极出行。
