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首页> 外文期刊>Health & place >Public transit generates new physical activity: Evidence from individual GPS and accelerometer data before and after light rail construction in a neighborhood of Salt Lake City, Utah, USA
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Public transit generates new physical activity: Evidence from individual GPS and accelerometer data before and after light rail construction in a neighborhood of Salt Lake City, Utah, USA

机译：公共交通产生了新的体育活动：在美国犹他州盐湖城附近的轻轨建设前后，通过单独的GPS和加速度计数据得到的证据

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摘要

Poor health outcomes from insufficient physical activity (PA) are a persistent public health issue. Public transit is often promoted for positive influence on PA. Although there is cross-sectional evidence that transit users have higher PA levels, this may be coincidental or shifted from activities such as recreational walking. We use a quasi-experimental design to test if light rail transit (LRT) generated new PA in a neighborhood of Salt Lake City, Utah, USA. Participants (n=536) wore Global Positioning System (GPS) receivers and accelerometers before (2012) and after (2013) LRT construction. We test within-person differences in individuals' PA time based on changes in transit usage pre- versus post-intervention. We map transit-related PA to detect spatial clustering of PA around the new transit stops. We analyze within-person differences in PA time based on daily transit use and estimate the effect of daily transit use on PA time controlling for socio-demographic variables. Results suggest that transit use directly generates new PA that is not shifted from other PA. This supports the public health benefits from new high quality public transit such as LRT. (C) 2015 Elsevier Ltd. All rights reserved.
机译：身体活动不足（PA）导致健康状况不佳是一个持续存在的公共卫生问题。人们通常会提倡公共交通对PA产生积极影响。尽管有横截面证据表明公交用户的PA水平较高，但这可能是偶然的，也可能是休闲步行等活动的转移。我们使用准实验设计来测试轻轨交通（LRT）是否在美国犹他州盐湖城附近产生了新的PA。参与者（n = 536）在LRT建造之前（2012）和之后（2013）佩戴了全球定位系统（GPS）接收器和加速度计。我们根据干预前后的交通使用变化来测试个人PA时间的人际差异。我们绘制与公交相关的PA的地图，以检测新公交站点周围PA的空间聚类。我们根据日常交通使用情况分析PA时间在人与人之间的差异，并估算日常交通使用对控制社会人口统计学变量的PA时间的影响。结果表明，过境使用直接产生了新的功放，不会从其他功放转移。这支持了新的高质量公共交通（例如轻轨）带来的公共健康利益。 （C）2015 Elsevier Ltd.保留所有权利。

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