▪ Abstract The thesis of this article is that multilevel interventions based on ecological models
and targeting individuals, social environments, physical environments, and policies must be …

Over the past forty years various changes in the US" built environment" have promoted
sedentary lifestyles and less healthful diets. James Sallis and Karen Glanz investigate …

Background: New tools are needed to examine physical activity and the contexts in which it
occurs. Community parks contribute to physical activity, but measuring activity and …

Background: Reliable and comprehensive measurement of physical activity settings is
needed to examine environment-behavior relations. Methods: Surveyed park professionals …

Urban parks and trails offer a significant venue for promoting active living. Public parks are
accessible to most people, generally offer free year-round opportunities, and have the …