Fighting Obesity by Reinventing Public Transportation: A Natural Experiment

通过重塑公共交通来对抗肥胖：一项自然实验

• 批准号: 10381387
• 负责人: Chanam Lee
• 金额: $ 8.7万
• 依托单位: TEXAS A&M UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-03-01 至 2023-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10381387
• 关键词: Accelerometer; Adult; Affect; Chronic; Cities; Collaborations; Communities; Congestive; Cost Savings; Costs and Benefits; Data Collection; Diabetes Mellitus; Education; Ensure; Health Care Costs; Health Promotion; Heart Diseases; Intervention; Knowledge; Lead; Lifting; Maintenance; Malignant Neoplasms; Measures; Methodology; Minority Groups; Modeling; Natural experiment; Neighborhoods; Obesity; Participant; Patient Recruitments; Physical activity; Pilot Projects; Policies; Protocols documentation; Public Health; Randomized; Recommendation; Recreation; Reporting; Research; Research Personnel; Resources; Risk Factors; Role; Schedule; Series; Services; Speed; Subgroup; Surveys; System; Testing; Texas; Time; Training; Transportation; Travel; Walking; age related; base; citizen science; cost; design; diaries; education cost; environmental intervention; evidence base; experimental study; falls; fighting; flexibility; follow up assessment; implementation barriers; innovation; instrument; low socioeconomic status; moderate-to-vigorous physical activity; multidisciplinary; obesity risk; operation; smartphone Application; statistics; urban planning; usability

PROJECT SUMMARY Use of public transit has been associated with increased physical activity, and considered a promising approach to reducing the risk of obesity and other age-related chronic conditions such as cancer, diabetes, and heart disease. However, little is known about the physical activity impacts of the increasingly popular Bus Rapid Transit (BRT) which combines the capacity, speed, and reliability of rail transit with the flexibility and cost advantage of a conventional bus system. Further, research is lacking about impacts of transit-oriented multilevel interventions (TOMI) that simultaneously consider multiple synergetic strategies to promote physical activity. This timely natural-experimental study uses a pre-post (opening of new BRT corridors in El Paso, Texas, fall 2018), case- comparison design to examine the causal impact of BRT and other supporting TOMI strategies on residents’ physical activity. The study involves 750 exposed (living within 0.5 miles from a new BRT station) and 500 non-exposed (living beyond 1 mile from any BRT stations) adult participants who live in the city and do not meet weekly physical activity recommendations (150+ minutes of moderate-to-vigorous PA) at baseline. The specific aims of this proposed study are to (1) determine physical activity impacts of BRT; (2) examine physical activity impacts of additional TOMI strategies, including education (lifting the knowledge barrier by offering a smartphone app and training to assist transit trip scheduling and to enhance knowledge about using BRT and BRT-reachable physical activity resources) and cost (lifting the financial barrier to transit use by executing an introductory free-fare strategy); and (3) explore benefits and costs of BRT implementation, and barriers and facilitators of BRT use. There will be three waves of data collection in spring 2018, spring 2019, and spring 2021, respectively. The multidisciplinary team (experts from urban planning, transportation, public health, statistics and disparities research) proposes many innovative policy, theoretical and methodological advances to understand the obesity reduction roles of service-oriented environmental interventions. These include a) conceptualization of multi-level factors influencing and strategies for modifying transit use, b) inclusion of multiple case-comparisons, c) application of relevant methodological approaches more commonly used in other research queries, and d) a citizen science approach for more contextual understanding of the PA-transit relationship. Its strong connection with the local communities and stakeholders and substantial record of research collaboration ensure an effective execution of the proposed research. At the end of the proposed study, the researchers expect to identify the physical activity impact of BRT and other TOMI strategies, examine the benefits and costs of BRT implementation, and reveal barriers and facilitators of BRT use.

项目摘要 使用公共交通与增加身体活动有关，并被认为是一种有前途的方法， 降低肥胖和其他与年龄相关的慢性疾病如癌症、糖尿病和心脏病的风险。然而，在这方面， 人们对日益流行的快速公交（BRT）对身体活动的影响知之甚少， 轨道交通的容量、速度和可靠性，以及传统公交系统的灵活性和成本优势。 此外，缺乏关于以交通为导向的多层次干预措施（TOMI）的影响的研究， 考虑多种协同策略来促进身体活动。 这项及时的自然实验研究使用了一个前后（在埃尔帕索，得克萨斯州，2018年秋季新的BRT走廊开放），案例- 比较设计，以检查BRT和其他支持TOMI策略对居民身体健康的因果影响， 活动这项研究涉及750名暴露者（居住在距离新BRT车站0.5英里的范围内）和500名非暴露者（居住在 超过1英里的任何BRT车站）成人参与者谁住在城市和不符合每周的身体活动 建议（150+分钟的中度至剧烈PA）。这项拟议研究的具体目标是 (1)确定BRT的身体活动影响;（2）检查额外TOMI策略的身体活动影响， 包括教育（通过提供智能手机应用程序和培训来帮助过境旅行， 调度和提高知识使用BRT和BRT可达的体力活动资源）和成本（提升 通过执行免费通行战略，消除使用过境的财政障碍）;以及（3）探讨 BRT实施，以及BRT使用的障碍和促进因素。2018年春季将有三波数据收集， 弹簧2019和弹簧2021。 多学科团队（来自城市规划、交通、公共卫生、统计和差异研究的专家） 提出了许多创新的政策，理论和方法的进步，以了解肥胖减少的作用， 以服务为导向的环境干预。其中包括：a）多层次影响因素的概念化， 改变过境用途的战略，B）纳入多个案例比较，c）采用相关方法 在其他研究查询中更常用的方法，以及d）公民科学方法， 了解PA-过境关系。与当地社区和利益攸关方的密切联系， 大量的研究合作记录确保了拟议研究的有效执行。结束时 研究人员希望确定BRT和其他TOMI策略对身体活动的影响， BRT实施的效益和成本，并揭示BRT使用的障碍和促进因素。