Journal
ENVIRONMENT INTERNATIONAL
Volume 165, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.envint.2022.107317
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Categories
Funding
- NCI Centers for Transdisciplinary Research on Energetics and Cancer (TREC) [U01 CA116850, U54 CA155496, U54 CA155626, U54 CA155435, U54 CA155850]
- NIH [UM1 CA176726, R01 ES017017]
- European Union [845570]
- Ramo?n y Cajal fellowship [RYC-2020-029441-I]
- Spanish Ministry of Science and Innovation
- Harvard NHLBI Cardiovascular Epidemiology Training [RYC-2020-029441-I]
- National Cancer Institute of the National Institutes of Health Award [T32 HL098048, R01 HL150119]
- NIDDK [R00 CA201542, P30 DK046200]
- National Institute of Environmental Health Sciences of the National Institutes of Health [F32 CA162847]
- [P30 ES000002]
- Marie Curie Actions (MSCA) [845570] Funding Source: Marie Curie Actions (MSCA)
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This study quantified the associations between environmental exposure and physical activity using GPS-based activity space measures and accelerometer-based physical activity measures. The results showed that higher walkability and greenness in activity spaces were associated with higher levels of physical activity.
Introduction: Built and natural environments may provide opportunities for physical activity. However, studies are limited by primarily using residential addresses to define exposure and self-report to measure physical activity. We quantified associations between global positioning systems (GPS)-based activity space measures of environmental exposure and accelerometer-based physical activity. Methods: Using a nationwide sample of working female adults (N = 354), we obtained seven days of GPS and accelerometry data. We created Daily Path Area activity spaces using GPS data and linked these activity spaces to spatial datasets on walkability (EPA Smart Location Database at the Census block group level) and greenness (satellite vegetation at 250 m resolution). We utilized generalized additive models to examine nonlinear associations between activity space exposures and accelerometer-derived physical activity outcomes adjusted for demographic characteristics, socioeconomic factors, and self-rated health. Results: Higher activity space walkability was associated with higher levels of moderate-vigorous physical activity, and higher activity space greenness was associated with greater numbers of steps per week. No strong relationships were observed for sedentary behavior or light physical activity. Highest levels of moderate-vigorous physical activity were observed for participants with both high walkability and high greenness in their activity spaces. Conclusion: This study contributes evidence that higher levels of physical activity occur in environments with more dense, diverse, and well-connected built environments, and with higher amounts of vegetation. These data suggest that urban planners, landscape architects, and policy makers should implement and evaluate environmental interventions to encourage higher levels of physical activity.
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