title: Testing the activitystat hypothesis.
authors.forename: Terence J
authors.initials: TJ
authors.lastname: Wilkin
authors.forename: Brad S
authors.initials: BS
authors.lastname: Metcalf
mesh_terms: D000294:Adolescent Behavior / Q000502:physiology*; D002652:Child Behavior / Q000502:physiology*; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D012574:Schools