Comparing the Normalized Difference Vegetation Index with the Google Street View Measure of Vegetation to Assess Associations between Greenness, Walkability, Recreational Physical Activity, and Health in Ottawa, Canada

Autor: Paul J. Villeneuve; Renate L. Ysseldyk; Ariel Root; Sarah Ambrose; Jason DiMuzio; Neerija Kumar; Monica Shehata; Min Xi; Evan Seed; Xiaojiang Li; Mahdi Shooshtari; Daniel Rainham
Sprache: Englisch
Veröffentlicht: 2018
Quelle: Directory of Open Access Journals: DOAJ Articles
Online Zugang: http://www.mdpi.com/1660-4601/15/8/1719
https://doaj.org/toc/1660-4601
1660-4601
doi:10.3390/ijerph15081719
https://doaj.org/article/b7a65c159d6244f587da89cb70b7a884
https://doi.org/10.3390/ijerph15081719
https://doaj.org/article/b7a65c159d6244f587da89cb70b7a884
Erfassungsnummer: ftdoajarticles:oai:doaj.org/article:b7a65c159d6244f587da89cb70b7a884

Zusammenfassung

The manner in which features of the built environment, such as walkability and greenness, impact participation in recreational activities and health are complex. We analyzed survey data provided by 282 Ottawa adults in 2016. The survey collected information on participation in recreational physical activities by season, and whether these activities were performed within participants’ neighbourhoods. The SF-12 instrument was used to characterize their overall mental and physical health. Measures of active living environment, and the satellite derived Normalized Difference Vegetation Index (NDVI) and Google Street View (GSV) greenness indices were assigned to participants’ residential addresses. Logistic regression and least squares regression were used to characterize associations between these measures and recreational physical activity, and self-reported health. The NDVI was not associated with participation in recreational activities in either the winter or summer, or physical or mental health. In contrast, the GSV was positively associated with participation in recreational activities during the summer. Specifically, those in the highest quartile spent, on average, 5.4 more hours weekly on recreational physical activities relative to those in the lowest quartile (p = 0.01). Active living environments were associated with increased utilitarian walking, and reduced reliance on use of motor vehicles. Our findings provide support for the hypothesis that neighbourhood greenness may play an important role in promoting participation in recreational physical activity during the summer.