Noyes Philip, Fung Lawrence, Lee Karen K, Grimshaw Victoria E, Karpati Adam, DiGrande Laura
Brooklyn District Public Health Office, New York City Dept of Health and Mental Hygiene, Brooklyn, NY.
J Phys Act Health. 2014 Jan;11(1):1-9. doi: 10.1123/jpah.2011-0429. Epub 2012 Dec 17.
Regular physical activity such as biking can help prevent obesity and chronic disease. Improvements in cycling infrastructure are associated with higher overall cycling rates, but less is known about bike lane utilization in low-income urban neighborhoods.
During the summer of 2009, 4 Central Brooklyn streets with bicycle lanes were studied using camcorders to record for a total of 40 hours. Video recordings were coded for behaviors and characteristics of cyclists and motorists. An intercept survey (N = 324, 42% participation rate) captured information on cyclist demographics, behaviors, and attitudes.
1282 cyclists were observed on study streets. Cyclists were primarily male (80.0%) and non-White (54.5%). 9.9% of motorists drove in the bike lane and parked vehicles blocked the bike lane for 9.6% of the observational period. Of cyclists surveyed, 69.4% lived locally, 61.3% were normal weight or underweight, and 64.8% met recommended levels of physical activity by cycling 30+ minutes/day on 5+ days of the past week.
Bicycle lanes were used by local residents of a low-income urban neighborhood. Compared with neighborhood residents overall, cyclists reported better health and health behaviors. Enhancing infrastructure that supports active transportation may be effective in reducing health inequities in low-income urban communities.
定期进行体育活动，如骑自行车，有助于预防肥胖和慢性病。自行车基础设施的改善与总体骑行率的提高相关，但对于低收入城市社区自行车道的使用情况了解较少。
2009年夏季，对布鲁克林市中心4条设有自行车道的街道进行了研究，使用摄像机总共记录了40小时。对视频记录进行编码，以了解骑自行车者和驾车者的行为及特征。一项拦截式调查（N = 324，参与率42%）收集了有关骑自行车者的人口统计学、行为和态度的信息。
在研究街道上观察到1282名骑自行车者。骑自行车者主要为男性（80.0%）和非白人（54.5%）。9.9%的驾车者在自行车道上行驶，在观察期内，停放的车辆阻塞自行车道的时间占9.6%。在接受调查的骑自行车者中，69.4%居住在当地，61.3%体重正常或体重过轻，64.8%通过在过去一周的5天以上每天骑行30分钟以上达到了推荐的体育活动水平。
低收入城市社区的当地居民使用自行车道。与整个社区居民相比，骑自行车者的健康状况和健康行为更好。加强支持积极出行的基础设施建设可能有效减少低收入城市社区的健康不平等现象。
