title: Neighborhood environment, self-efficacy, and physical activity in urban adolescents.
abstract: OBJECTIVE
  To test the pathways between perceptions of built environment factors and physical activity in urban youth.
  
  
  METHODS
  Three hundred fifty high school students' perceptions of neighborhood, and barrier self efficacy were measured by a Web survey. Physical activities  were assessed using a one-week diary and accelerometers.
  
  
  RESULTS
  Land-use mix/accessibility and neighborhood satisfaction had direct pathways to walking. Barrier self-efficacy had a direct pathway to walking. In addition, land use, specifically neighborhood accessibility, influenced  adolescents' walking behavior via self-efficacy. Similar pathways were found in MVPA models.
  
  
  CONCLUSIONS
  Neighborhood factors appear to work together with self-efficacy to facilitate physical activity.
authors.affiliation: Department of Behavioral and Community Health University of Maryland School of Public Health, College Park, MD, USA. ccv@umd.edu
authors.forename: Carolyn C
authors.initials: CC
authors.lastname: Voorhees
authors.forename: Alice F
authors.initials: AF
authors.lastname: Yan
authors.forename: Kelly J
authors.initials: KJ
authors.lastname: Clifton
authors.forename: Min Qi
authors.initials: MQ
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D003430:Cross-Sectional Studies; D003625:Data Collection; D004779:Environment Design; D015444:Exercise; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D012111:Residence Characteristics; D012449:Safety; D020377:Self Efficacy; D012931:Social Environment; D014505:Urban Population; D016138:Walking