title: Changes in Physical Activity Domains During the Transition Out of High School: Psychosocial and Environmental Correlates.
abstract: BACKGROUND
  This study examined changes in multiple physical activity domains during the transition out of high school and psychosocial and environmental determinants of these changes.
  
  
  METHODS
  A 1-year prospective study was designed. The baseline sample was composed of 244 last-year high school students (58.6% female) from Valencia, Spain. Follow-up rate was 46%. Physical activity and potential determinants were measured by the Global Physical Activity Questionnaire and other evaluated scales in 2 waves.
  
  
  RESULTS
  Total physical activity and active commuting (AC) decreased, respectively, by 21% and 36%, only in males. At time 1, access to car/motorbike (inverse), planning/psychosocial barriers (inverse), street connectivity (positive) and parental education (inverse) were significantly associated with AC (P < .05). Prospectively, the increase in distance to school/workplace was associated with AC decrease among males (P < .001). In both genders, there was a decrease in leisure-time physical activity (LTPA; -35% in males, -43% in females). At time 1, self-efficacy and social support were positive correlates of LTPA (P < .05). Social support decreases were associated with reductions in LTPA for males (P < .05).
  
  
  CONCLUSIONS
  Several psychosocial and environmental correlates of physical activity change were identified, and these are promising targets for interventions.
authors.affiliation: Dept of Teaching of Musical, Visual and Corporal Expression, University of Valencia, Valencia, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Molina-García
authors.forename: Ana
authors.initials: A
authors.lastname: Queralt
authors.forename: Isabel
authors.initials: I
authors.lastname: Castillo
authors.forename: James F
authors.initials: JF
authors.lastname: Sallis
mesh_terms: D000293:Adolescent; D003430:Cross-Sectional Studies; D004777:Environment; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D011446:Prospective Studies; D012574:Schools; D020377:Self Efficacy; D012944:Social Support; D013030:Spain; D013334:Students; D011795:Surveys and Questionnaires; D014186:Transportation