期刊
HEALTH & PLACE
卷 32, 期 -, 页码 1-7出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.healthplace.2014.12.008
关键词
Density; Land use; Mode share; Physical activity; Transportation
资金
- NIH [HL083454, T32 HL79891]
Objectives: To investigate relations of walking, bicycling and vehicle time to neighborhood vvalkability and total physical activity in youth. Methods: Participants (N=690) were from 380 census block groups of high/low vvalkability and income in two US regions. Home neighborhood residential density, intersection density, retail density, entertainment density and walkability were derived using GlS. Minutes/day of walking, bicycling and vehicle time were derived from processing algorithms applied to GPS. Accelerometers estimated total daily moderate-tovigorous physical activity (MVPA). Models were adjusted for nesting of days (N=2987) within participants within block groups. Results: Walking 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. Conclusions: Increasing 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. (C) 2014 Elsevier Ltd. All rights reserved,
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