title: School grounds and physical activity: Associations at secondary schools, and over the transition from primary to secondary schools.
abstract: This paper aims to further understanding of the physical environments of secondary schools and their associations with young peoples' physical activity. Accelerometer-derived physical activity measurements from 299 participants in the SPEEDY study (Norfolk, UK) were obtained from baseline measurements (age 9-10y) and +4y follow-up. These were linked to objective measures of primary and secondary school environments as measured by the SPEEDY grounds audit tool. We saw considerable differences in the nature of school grounds between primary and secondary schools. Cross-sectional associations were seen between active travel provision scores and commuting time moderate-to-vigorous physical activity (MVPA) for 13-14 year old boys and adolescents living further from school. However, few associations were seen between changes in school grounds scores and changes in school-based MVPA.
authors.affiliation: Norwich Medical School & UKCRC Centre for Diet and Activity Research, University of East Anglia, Norwich, UK. Electronic address: flo.harrison@uea.ac.uk.
authors.forename: Flo
authors.initials: F
authors.lastname: Harrison
authors.affiliation: MRC Epidemiology Unit & UKCRC Centre for Diet and Activity Research, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, UK. Electronic address: esther.vansluijs@mrc-epid.cam.ac.uk.
authors.forename: Esther M F
authors.initials: EM
authors.lastname: van Sluijs
authors.affiliation: MRC Epidemiology Unit & UKCRC Centre for Diet and Activity Research, University of Cambridge School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, Cambridge, UK. Electronic address: klc29@medschl.cam.ac.uk.
authors.forename: Kirsten
authors.initials: K
authors.lastname: Corder
authors.affiliation: Norwich Medical School & UKCRC Centre for Diet and Activity Research, University of East Anglia, Norwich, UK. Electronic address: a.p.jones@uea.ac.uk.
authors.forename: Andy
authors.initials: A
authors.lastname: Jones
mesh_terms: D000293:Adolescent; D002648:Child; D015331:Cohort Studies; D004777:Environment; D015444:Exercise; D005260:Female; D006293:Health Promotion; D006801:Humans; D008297:Male; D012574:Schools; D011795:Surveys and Questionnaires; D006113:United Kingdom; D016138:Walking / Q000502:physiology
keywords: Adolescents; Audit; Environment; Physical activity; Primary school; Secondary school