title: Factors influencing physical activity levels among Canadian youth.
abstract: OBJECTIVE
  To describe the predisposing, enabling and reinforcing factors influencing the levels of physical activity among Canadian youth (ages 12-24).
  
  
  METHODS
  Analyses of the 1996-97 National Population Health Survey (NPHS) were conducted using data collected from female (n=6195) and male (n=5925) Canadians aged 12-24 years. The data were analyzed using correlational, ANOVA and regression procedures with post hoc analyses (Bonferroni) employed where applicable.
  
  
  RESULTS
  Compared to males, Canadian female youth were found to be less physically active, more concerned about being overweight, more depressed, and to consult mental health professionals more frequently. On the other hand, females were more likely to report greater social support than males and to be more socially involved. Those adolescents who smoke tend to be less physically active and, along with those who consume alcohol, have poorer health.
  
  
  CONCLUSIONS
  The significant predisposing, enabling and reinforcing factors influencing youths' physical activity levels more profoundly affect females. The results are discussed in terms of strategies for enabling physical activity available in the literature. In addition to individual determinants influencing physical activity, a move toward understanding policy and environmental factors is recommended for further research.
authors.affiliation: School of Physical Education, University of Victoria, Victoria, BC. jwharfhi@uvic.ca
authors.forename: Joan Wharf
authors.initials: JW
authors.lastname: Higgins
authors.forename: Catherine
authors.initials: C
authors.lastname: Gaul
authors.forename: Sandra
authors.initials: S
authors.lastname: Gibbons
authors.forename: Geraldine
authors.initials: G
authors.lastname: Van Gyn
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000502:physiology / Q000523:psychology*; D002170:Canada / Q000453:epidemiology; D002648:Child; D003625:Data Collection; D003657:Decision Making; D015444:Exercise; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D008297:Male; D012944:Social Support