Association between neighborhood walkability and GPS-measured walking,bicycling and vehicle time in adolescents |
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| Institution: | 1. College of Sport, Zhengzhou University of Light Industry, Zhengzhou, Henan 450002, China;2. University of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093, United States;3. Schools of Population and Public Health and Community and Regional Planning, University of British Columbia, Vancouver, BC, Canada;4. University of Washington Department of Pediatrics and Seattle Children''s Hospital Research Institute, P.O. Box 5371, Seattle, WA 98145, United States;5. Department of Family Medicine and Public Health, University of California, San Diego, 9500 Gilman Drive # 0811, La Jolla, CA 92093, United States;6. University of Pennsylvania Perelman School of Medicine and School of Nursing, 423 Guardian Drive, Philadelphia, PA 19104, United States;7. Children''s Mercy Hospital, Center for Children''s Healthy Lifestyles and Nutrition, 610 E. 22nd St., Kansas City, MO 64108, United States |
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| Abstract: | ObjectivesTo investigate relations of walking, bicycling and vehicle time to neighborhood walkability and total physical activity in youth.MethodsParticipants (N=690) were from 380 census block groups of high/low walkability and income in two US regions. Home neighborhood residential density, intersection density, retail density, entertainment density and walkability were derived using GIS. Minutes/day of walking, bicycling and vehicle time were derived from processing algorithms applied to GPS. Accelerometers estimated total daily moderate-to-vigorous physical activity (MVPA). Models were adjusted for nesting of days (N=2987) within participants within block groups.ResultsWalking occurred on 33%, active travel on 43%, and vehicle time on 91% of the days observed. Intersection density and neighborhood walkability were positively related to walking and bicycling and negatively related to vehicle time. Residential density was positively related to walking.ConclusionsIncreasing walking in youth could be effective in increasing total physical activity. Built environment findings suggest potential for increasing walking in youth through improving neighborhood walkability. |
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| Keywords: | Density Land use Mode share Physical activity Transportation |
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