Introduction

Launched in 2015, Philadelphia's (Pennsylvania, USA) bikeshare program was the first to specifically target lower-income and minority residents.

Objective

We describe the design, measures and baseline characteristics of a bikeshare evaluation designed to assess within-person changes in physical activity levels (PA) and focused particularly on persons with lower socio-economic status.

Methods

1206 Philadelphians enrolled in the evaluation during 2015–2017 and completed an internet survey. Past 7-day work, transport, and leisure-time PA were collected. Participants were linked to their bikeshare trips in order to objectively assess program use.

Results

Survey participants were 41% non-White; 33% lower-socio-economic status (‘disadvantaged’); main transportation mode was split between motor vehicle, public transit, and walking; 43% had never been on a personal bicycle in the city; and only 6% primarily traveled via bicycle. After excluding walking, 45% were insufficiently active (lower levels of moderate or vigorous PA based on minimum guidelines). Relative to others, those who were insufficiently active were disproportionately older, female, non-Hispanic Black and disadvantaged. Adjusted baseline results found much higher prevalence of insufficient activity among disadvantaged persons and persons primarily traveling via public transit or motor vehicle (relative to walking or cycling).

Conclusions

The evaluation successfully enrolled a diverse cohort of new bikeshare members. The two-year evaluation will assess changes in biking and total activity levels, focusing on disadvantaged persons and those with insufficient activity at baseline.

中文翻译：

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费城城市中众多共享单车用户的设计和基准描述

介绍

费城（美国宾夕法尼亚州）的单车共享计划于2015年启动，是第一个专门针对低收入和少数民族居民的计划。

目的

我们描述了单车共享评估的设计，措施和基线特征，该评估旨在评估人体内体育活动水平（PA）的变化，尤其关注社会经济地位较低的人。

方法

1206名费城人在2015–2017年期间参加了评估，并完成了一项互联网调查。收集了过去7天的工作，交通和休闲时间PA。参与者与他们的共享单车旅行联系在一起，以便客观地评估计划的使用情况。

结果

调查参与者中41％为非白人；低33％的社会经济地位（“弱势”）；主要交通方式分为机动车，公交和步行。43％的人从未在城市里骑过私人自行车；只有6％的人主要是骑自行车旅行。排除步行后，有45％的人运动不足（根据最低指南，中度或剧烈PA的水平较低）。相对于其他人来说，那些运动不足的人年龄更大，女性，非西班牙裔黑人和处境不利。调整后的基线结果发现，在处境不利的人和主要通过公共交通工具或机动车旅行（相对于步行或骑自行车）的人中，活动不足的发生率要高得多。

结论

此次评估成功地招​​募了众多新的共享单车族成员。这项为期两年的评估将评估自行车运动和总活动水平的变化，重点是弱势人群和基线时活动不足的人群。