title: Physical, policy, and sociocultural characteristics of the primary school environment are positively associated with children's physical activity during class time.
abstract: BACKGROUND
  The objective of this study was to develop a multidomain model to identify key characteristics of the primary school environment associated with children's physical activity (PA) during class-time.
  
  
  METHODS
  Accelerometers were used to calculate time spent in moderate-to-vigorous physical activity during class-time (CMVPA) of 408 sixth-grade children (mean ± SD age 11.1 ± 0.43 years) attending 27 metropolitan primary schools in Perth Western Australia. Child and staff self-report instruments and a school physical environment scan administered by the research team were used to collect data about children and the class and school environments. Hierarchical modeling identified key variables associated with CMVPA.
  
  
  RESULTS
  The final multilevel model explained 49% of CMVPA. A physically active physical education (PE) coordinator, fitness sessions incorporated into PE sessions and either a trained PE specialist, classroom teacher or nobody coordinating PE in the school, rather than the deputy principal, were associated with higher CMVPA. The amount of grassed area per student and sporting apparatus on grass were also associated with higher CMVPA.
  
  
  CONCLUSIONS
  These results highlight the relevance of the school's sociocultural, policy and physical environments in supporting class-based PA. Interventions testing optimization of the school physical, sociocultural and policy environments to support physical activity are warranted.
authors: School of Population Health, The University of Western Australia, Crawley, Australia.
authors: Karen
authors: K
authors: Martin
authors: Alexandra
authors: A
authors: Bremner
authors: Jo
authors: J
authors: Salmon
authors: Michael
authors: M
authors: Rosenberg
authors: Billie
authors: B
authors: Giles-Corti
mesh_terms: D061725:Accelerometry; D002648:Child; D004777:Environment; D004779:Environment Design; D015444:Exercise; D005260:Female; D015438:Health Behavior; D006293:Health Promotion / Q000379:methods*; D006801:Humans; D008297:Male; D009043:Motor Activity; D016134:Organizational Policy; D010806:Physical Education and Training / Q000379:methods*; D012574:Schools; D012931:Social Environment; D012959:Socioeconomic Factors; D013334:Students; D014505:Urban Population; D014904:Western Australia