title: Exercise intensity of recreational sport: impacts of sex and fitness.
authors.affiliation: School of Kinesiology and Health Studies, Queen's University , Kingston, Ontario, K7L 3N6, Canada.
authors.forename: Colin J
authors.initials: CJ
authors.lastname: Boyd
authors.forename: Norah J
authors.initials: NJ
authors.lastname: Macmillan
authors.forename: Alex E
authors.initials: AE
authors.lastname: Green
authors.forename: Jon E D
authors.initials: JE
authors.lastname: Ross
authors.forename: David B
authors.initials: DB
authors.lastname: Thorp
authors.forename: Brendon J
authors.initials: BJ
authors.lastname: Gurd