INTRODUCTION Encouraging walking during the daily commute is a potential strategy for increasing physical activity levels. This study aimed: (i) to examine, and compare by travel mode, the objectively measured physical activity of a working adult population, and, (ii) to identify associations between mode of travel to work and a range of individual, interpersonal, organisational and environmental characteristics. METHODS Employees (n=654) recruited from 87 workplaces in geographically distinct areas provided data through accelerometers, Global Positioning System (GPS) receivers, travel diaries and questionnaires. Separate multivariable logistic regression models were developed to examine factors associated with physical activity during the commute and mode of travel to work. RESULTS In comparison to car users (7.3 minutes±Standard Deviation 7.6), walkers (34.3±18.6) and public transport users (25.7±14.0) accrued substantially higher levels of daily moderate to vigorous physical activity during the commute. Combined accelerometer and GPS data showed that participants who walked at least ten minutes during their commute were more likely to have a shorter commute distance (p<0.001), occupy a sedentary job (p<0.01), and be classified as 'underweight or normal weight' (p<0.03). No car access (p<0.001), and absence of free work car parking (p<0.01) were independently related to walking to work and using public transport. Shorter commuting distances were also related to walking to work (p<0.001). Public transport users were more likely to be younger (p=0.04), have more positive environmental perceptions (p=0.01), and less likely to combine their commute with caring responsibilities (p=0.03). CONCLUSIONS This study shows that walking to work and using public transport are important contributors to physical activity levels in a working population. Planning, transport and behavioural interventions to promote walking during the commute should take into account the wider determinants. Reducing availability of free work car parking is one possible strategy to discourage car use.

中文翻译：

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出行方式与身体活动以及个人、人际、组织和环境特征的关联。


简介 鼓励日常通勤期间步行是提高身体活动水平的潜在策略。本研究旨在：(i) 按出行方式检查和比较客观测量的工作成年人口的体力活动，以及 (ii) 确定上班出行方式与一系列个人、人际、组织之间的关联和环境特征。方法 从不同地理位置的 87 个工作场所招募的员工 (n=654) 通过加速度计、全球定位系统 (GPS) 接收器、旅行日记和问卷提供数据。开发了单独的多变量逻辑回归模型来检查与通勤期间体力活动和上班方式相关的因素。结果 与汽车使用者（7.3 分钟±标准差 7.6）相比，步行者（34.3±18.6）和公共交通使用者（25.7±14.0）在通勤期间每天进行中度至剧烈体力活动的水平要高得多。综合加速度计和 GPS 数据显示，在通勤期间步行至少 10 分钟的参与者更有可能通勤距离较短 (p<0.001)、从事久坐工作 (p<0.01)，并被归类为“体重不足或正常”重量”（p<0.03）。没有汽车通行 (p<0.001) 和缺乏免费工作停车场 (p<0.01) 与步行上班和使用公共交通工具独立相关。较短的通勤距离也与步行上班有关（p<0.001）。公共交通使用者更有可能更年轻（p=0.04），有更积极的环境观念（p=0.01），并且不太可能将通勤与照顾责任结合起来（p=0.03）。 结论 这项研究表明，步行上班和使用公共交通工具是工作人群体力活动水平的重要影响因素。促进通勤期间步行的规划、交通和行为干预措施应考虑更广泛的决定因素。减少免费工作停车位是阻止汽车使用的一种可能策略。