Association between neighborhood walkability and GPS-measured walking, bicycling and vehicle time in adolescents

作者：Carlson Jordan A^*; Saelens Brian E; Kerr Jacqueline; Schipperijn Jasper; Conway Terry L; Frank Lawrence D; Chapman Jim E; Glanz Karen; Cain Kelli L; Sallis James F

来源：Health & Place, 2015, 32: 1-7.

DOI：10.1016/j.healthplace.2014.12.008

• Density
• Land use
• Mode share
• Physical activity
• Transportation

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.

• 出版日期2015-3