Introduction

Increasing the use of active commuting (walking or cycling to work; AC) is associated with positive health outcomes and has been shown to be a feasible strategy for increasing physical activity. However, intervention studies for increasing AC have been criticised for lacking rigour and poor use of theory. This study was an impact evaluation of a multi-component, theory-based workplace intervention that aimed to increase AC among office workers in Brisbane, Australia.

Methods

Five workplaces were enrolled into the study, three into the intervention group and two into a comparison group. Commuter Choices, a six-week program based on social cognitive theory (SCT), was developed. The program included four lunchtime seminars, goal-setting, personalised journey plans, a buddy system and online information. It was implemented in October–November 2018. Self-report data were collected pre/post-intervention using an online survey and a 7-day online diary of commuting behaviour. Generalised estimating equations were used to examine pre-to post-intervention changes in commuting and in SCT constructs.

Results

After adjusting for confounding variables, the intervention group added a mean of 8.9 min/day of AC, with no significant change in the comparison group. Post-intervention, intervention participants were more likely than comparison group participants to achieve sufficient levels of physical activity from commuting (40% vs 14%; p < 0.001) and to achieve 80% of sufficient physical activity from commuting (75% vs 49%; p = 0.001). The SCT constructs self-regulation and social support increased in the intervention group only (p < 0.01).

Conclusions

The increases in AC in the intervention group are meaningful at a population level. Commuter Choices is a promising model for future interventions. A larger trial with a more diverse sample would be worthwhile.

中文翻译：

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通勤者选择：一项社会认知方法的聚类，半实验性试验，旨在提高上班族的主动通勤能力

介绍

增加积极通勤（步行或骑自行车上班； AC）的使用会带来积极的健康结果，并且已被证明是增加身体活动的可行策略。但是，由于缺乏严格性和理论运用不足，人们批评增加AC的干预研究。这项研究是一项针对多成分，基于理论的工作场所干预的影响评估，该干预旨在提高澳大利亚布里斯班的上班族的交流能力。

方法

五个工作场所参加了研究，三个工作场所参加了干预组，另外两个工作组进入了比较组。开发了通勤者选择，这是一个基于社会认知理论（SCT）的六周计划。该计划包括四个午餐时间研讨会，目标设定，个性化的旅程计划，一个伙伴系统和在线信息。它于2018年10月至11月实施。干预前/干预后使用在线调查和为期7天的通勤行为在线日记收集自我报告数据。通用估计方程用于检查通勤和SCT构造中干预前后的变化。

结果

在调整了混杂变量后，干预组平均每天增加8.9分钟的AC，在比较组中没有明显变化。干预后，干预参与者比通勤者更有可能通过通勤获得足够的体力活动（40％vs 14％； p <0.001），并通过通勤获得足够的体力活动的80％（75％vs 49％） ； p = 0.001）。仅在干预组中，SCT构建了自我调节和社会支持（p <0.01）。

结论

干预组中AC的增加在人群水平上是有意义的。通勤者选择是未来干预的有希望的模型。进行更大样本且样本更多的大型试验是值得的。