title: Alternative high school students' physical activity: role of self-efficacy.
abstract: OBJECTIVE
  To examine physical activity self-efficacy as a mediator of the association between perceived barriers to PA and moderate-to-vigorous physical activity (MVPA) among alternative high school (AHS) students.
  
  
  METHODS
  Students (N=145) from 6 AHS completed self-report  questionnaires.
  
  
  RESULTS
  Mediation analyses revealed partial mediation of PA self-efficacy on relationships between general barriers to PA and MVPA (b = -.39 reduced b = -.33) among females (47.6% of sample).
  
  
  CONCLUSIONS
  Interventions with female AHS students should  include a component on building PA self-efficacy. However, results suggest the broader environment may have greater impact on MVPA than individual-level psycho-social factors.
authors.affiliation: Sanford Research/USD, Health Disparities Research Center, Sanford Research Center, Sioux Falls, SD, USA. denyelle.kenyon@sanfordhealth.org
authors.forename: DenYelle Baete
authors.initials: DB
authors.lastname: Kenyon
authors.forename: Martha Y
authors.initials: MY
authors.lastname: Kubik
authors.forename: Cynthia
authors.initials: C
authors.lastname: Davey
authors.forename: John
authors.initials: J
authors.lastname: Sirard
authors.forename: Jayne A
authors.initials: JA
authors.lastname: Fulkerson
mesh_terms: D000293:Adolescent; D003430:Cross-Sectional Studies; D015444:Exercise; D006801:Humans; D008910:Minnesota; D012574:Schools; D020377:Self Efficacy; D013334:Students / Q000523:psychology*; D011795:Surveys and Questionnaires