title: Determinants of sufficient daily activity in Australian primary school children.
abstract: OBJECTIVE
  Australian guidelines recommend that children participate in at least one hour of physical activity every day. We aimed to measure physical activity participation in a random sample of Australian primary school children and to determine the biological, behavioural, environmental and social influences associated with insufficient daily activity.
  
  
  METHODS
  We analysed the following cross-section data from a randomly selected sample of children (N=518) aged 5 to 12 years: age, gender, socioeconmic status (SES) indicators, family size, home play equipment availability, transport method to school, and estimated time per week in physical and sedentary activity. Logistic regression analysis was performed to determine variables that were associated with insufficient (<60 minutes) daily activity.
  
  
  RESULTS
  Seventy-six children (15% of the cohort) failed to meet the minimum activity recommendations of 60 minutes of daily activity. These children were significantly less likely to walk or cycle to school (adjusted odds ratio (OR) 0.43; 95% CI=0.24-0.77) or participate in organised sports or activity (OR 0.42; 95% CI=0.28-0.64) and were more likely to spend in excess of 2 hours a day watching television of using a computer for entertainment (OR 2.10 (1.16-3.78). Age, gender, SES and family size were not significantly associated with insufficient activity.
  
  
  CONCLUSIONS
  There exists a significant proportion of the paediatric population who are insufficiently active. Interventions to encourage increased activity in this sub-group may be successful if they seek to alter sedentary behaviour (namely television use) and method of transportation to and from school.
authors.affiliation: School of Population Health, University of Queensland, Herston, Australia. a.spinks@griffith.edu.au
authors.forename: Anneliese
authors.initials: A
authors.lastname: Spinks
authors.forename: Alison
authors.initials: A
authors.lastname: Macpherson
authors.forename: Chris
authors.initials: C
authors.lastname: Bain
authors.forename: Roderick
authors.initials: R
authors.lastname: McClure
mesh_terms: D001315:Australia; D002648:Child; D002675:Child, Preschool; D003430:Cross-Sectional Studies; D015444:Exercise; D005260:Female; D015438:Health Behavior; D006801:Humans; D016015:Logistic Models; D008297:Male; D012574:Schools; D011795:Surveys and Questionnaires