title: Variables associated with children's physical activity levels during recess: the A-CLASS project.
authors.affiliation: Centre for Physical Activity and Nutrition Research, Deakin University, 221 Burwood Highway, Burwood, Victoria 3125, Australia. nicky.ridgers@deakin.edu.au.
authors.forename: Nicola D
authors.initials: ND
authors.lastname: Ridgers
authors.forename: Stuart J
authors.initials: SJ
authors.lastname: Fairclough
authors.forename: Gareth
authors.initials: G
authors.lastname: Stratton