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Routes to Environmental Justice: Assessment of Ambient Environmental Exposures for Safe Routes to School Programs

环境正义之路：评估周围环境暴露，确保安全上学路线计划

基本信息

批准号：
10507655
负责人：
Kevin Lai Lanza
金额：
$ 15.76万
依托单位：
UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON
依托单位国家：
美国
项目类别：
财政年份：
2022
资助国家：
美国
起止时间：
2022-09-01 至 2025-08-31
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/10507655
关键词：
Accelerometer Adult Age Air Air Pollutants Air Pollution Area Behavior Bicycling Blood flow Body Temperature Child Child Health Climate Color Communities Commuting Data Development Plans Diabetes Mellitus Effectiveness of Interventions Enrollment Environment Environmental Exposure Evaluation Exposure to Familiarity Feasibility Studies Health Health behavior Heat Stress Disorders Home Incentives Infrastructure Injury Intervention Investments Learning Literature Low income Malignant Neoplasms Measures Methods Modeling Municipalities Neighborhoods Output Parents Participant Personal Satisfaction Physical activity Plants Policies Public Health Schools Research Research Personnel Risk Route Safety Sampling School-Age Population Schools Skin Statistical Data Interpretation Students Surveys Techniques Temperature Testing Texas Training Transportation Travel Trees Urbanization Walking austin built environment cardiovascular disorder risk career development climate change cohort community based participatory research cost design environmental intervention environmental justice experience extreme heat fifth grade health equity innovation post intervention programs recruit safety education school environment sensor spatiotemporal third grade

项目摘要

Less than one-half of U.S. children age 6–11 are reaching recommended levels of physical activity, a health behavior that tracks into adulthood and reduces the risk of cardiovascular disease, diabetes, and cancer. Significant investment has been directed towards creating healthy environments for school-age children including Safe Routes to School (SRTS), a national program that includes improvements to sidewalks, crosswalks, and bicycle lanes. SRTS has been shown to increase the percentage of children active commuting to school; however, high ambient temperatures may serve as a barrier to engaging in outdoor physical activity due to thermal discomfort. Understanding the impact of SRTS on children's heat stress as measured by wet bulb globe temperature (WBGT) and physical activity levels is critical for health equity, especially in Texas where children in low-income communities and communities of color live in areas less supportive of physical activity and disproportionately higher ambient temperatures due to discriminatory policies and ongoing disinvestment. The proposed research leverages the STREETS study—a pre- and post-assessment of SRTS in Austin, Texas, on child physical activity—to propose three specific aims: 1) construct ambient exposure estimates of WBGT on school routes pre- and post-intervention and in home neighborhoods using spatially- and temporally-refined modeling and GPS units; 2) determine how ambient temperatures and the built environment are associated with active school commuting; and 3) identify methods to measure and document how children and their parents experience and perceive ambient environmental exposures. Using spatiotemporal modeling within GIS and formulae in the literature, WBGT will be estimated for all school routes taken by 462 students enrolled in the STREETS cohort (320 students from 23 schools receiving SRTS; 142 students from 10 schools not receiving SRTS) who were tasked with wearing accelerometers and GPS units for seven consecutive days over four periods (2018–2022) before and after SRTS implementation. Linear mixed-effects modeling will be used to determine the relations between WBGT, built environment, and child physical activity. To learn how children and their parents experience and perceive ambient environmental exposures, participatory methods (surveys, mapping, sensors) will be tested with 40 third grade students and their parents recruited by purposive sampling from schools enrolled in the STREETS study. To become an independent investigator specializing in climate equity, the candidate developed a career development plan with three training objectives: 1) to become proficient in working with ambient environmental data, in particular downscaled model outputs; 2) to develop expertise in conducting advanced statistical analyses commonly applied in exposure and health studies; and 3) to acquire familiarity with the design and techniques of community-based participatory research. Career development will mainly take place at the Michael & Susan Dell Center for Healthy Living at UTHealth School of Public Health in Austin.

不到一半的6-11岁的美国儿童达到了建议的体育活动水平，这是一种健康