Department of Clinical Science Intervention and Technology, Karolinska Institutet, Huddinge, Sweden.
Department of Health, Medicine and Caring Sciences, Linköping, Sweden.
JMIR Mhealth Uhealth. 2020 Jun 8;8(6):e18531. doi: 10.2196/18531.
Active transportation (AT; ie, walking and cycling as a mode for transportation) has been associated with decreased morbidity and mortality; however, low-cost and scalable intervention programs are lacking.
The goal of the research was to determine the effectiveness of a 3-month behavior change program delivered via a mobile phone app to promote AT (TravelVu Plus) on time spent in moderate-to-vigorous physical activity (MVPA).
For this 2-arm parallel randomized controlled trial, we recruited a population-based sample of 254 adults from Stockholm County who were aged 20 to 65 years and had access to a smartphone. On completion of 1-week baseline measures, the 254 participants were randomized to either the control or intervention group (1:1 ratio). Both groups had access to the standard TravelVu app (Trivector AB) for monitoring their AT for 6 months. The intervention group also received a 3-month behavior change program to promote AT (TravelVu Plus app). Assessors of outcomes were blinded to group allocation. Outcomes were objectively measured MVPA at 3 (primary) and 6 months. Secondary outcomes were AT, attitudes toward AT, and health-related quality of life at 3 and 6 months.
No effect on MVPA was observed after 3 months (P=.29); however, at 6 months the intervention group had a greater improvement in MVPA than the controls (6.05 minutes per day [95% CI 0.36 to 11.74; P=.04]). A Bayesian analyses showed that there was a 98% probability that the intervention had any effect at 6 months, and a 63% probability that this effect was >5 minute MVPA per day.
No effect on MVPA immediately after the intervention period (at 3 months) was observed; however, there was a delayed effect on MVPA (6 minutes per day) at 6 months, which corresponds to approximately 30% of the weekly MVPA recommendation. Our findings suggest that a behavior change program promoting AT delivered via an app may have a relevant effect on PA.
ClinicalTrials.gov NCT03086837; https://clinicaltrials.gov/ct2/show/NCT03086837.
INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): RR2-10.1186/s12889-018-5658-4.
积极的交通方式（即步行和骑自行车作为交通方式）与发病率和死亡率的降低有关；然而，缺乏低成本和可扩展的干预计划。
本研究的目的是确定通过手机应用程序（TravelVu Plus）提供的为期 3 个月的行为改变计划在促进适度至剧烈体力活动（MVPA）方面的有效性。
这是一项 2 臂平行随机对照试验，我们招募了来自斯德哥尔摩县的 254 名年龄在 20 至 65 岁之间、有智能手机的基于人群的样本。在完成 1 周的基线测量后，254 名参与者被随机分配到对照组或干预组（1:1 比例）。两组都可以使用标准的 TravelVu 应用程序（Trivector AB）监测他们的 AT 6 个月。干预组还收到了为期 3 个月的促进 AT 的行为改变计划（TravelVu Plus 应用程序）。结果评估者对分组分配不知情。主要结果是 3 个月（初级）和 6 个月时的客观测量 MVPA。次要结果是 3 个月和 6 个月时的 AT、对 AT 的态度和健康相关生活质量。
3 个月时，MVPA 无显著改善（P=.29）；然而，6 个月时，干预组的 MVPA 改善程度大于对照组（每天增加 6.05 分钟[95% CI 0.36 至 11.74；P=.04]）。贝叶斯分析表明，干预在 6 个月时有 98%的可能性有任何效果，有 63%的可能性是每天增加 5 分钟以上的 MVPA。
干预期（3 个月）后，MVPA 无立即影响；然而，6 个月时 MVPA 出现延迟效应（每天增加 6 分钟），相当于每周推荐 MVPA 的 30%左右。我们的研究结果表明，通过应用程序提供的促进 AT 的行为改变计划可能对 PA 有相关影响。
ClinicalTrials.gov NCT03086837；https://clinicaltrials.gov/ct2/show/NCT03086837。
国际注册报告标识符（IRRID）：RR2-10.1186/s12889-018-5658-4。
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