title: Construct and concurrent validation of OMNI-Kayak rating of Perceived Exertion Scale.
abstract: This study tested the concurrent and construct validity of a newly developed OMNI-Kayak Scale, testing 8 male kayakers who performed a flatwater load-incremented "shuttle" test over a 500-m course and 3 estimation-production trials over a 1,000-m course. Velocity, blood lactate concentration, heart rate, and rating of perceived exertion (RPE), using the OMNI-Kayak RPE Scale and the Borg 6-20 Scale were recorded. OMNI-Kayak Scale RPE was highly correlated with velocity, the Borg 6-20 Scale RPE, blood lactate, and heart rate for both load-incremented test (rs = .87-.96), and estimation trials (rs = .75-.90). There were no significant differences among velocities, heart rate and blood lactate concentration between estimation and production trials. The OMNI-Kayak RPE Scale showed concurrent and construct validity in assessing perception of effort in flatwater kayaking and is a valid tool for self-regulation of exercise intensity.
authors.affiliation: Centro de Educaçãio Física e Esporte, Departamento de Educação Fisica, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, km. 380, Campus Universitário, Londrina, PR, Brazil CEP 86015-990. fabioy_nakamura@yahoo.com.br
authors.forename: Fábio Y
authors.initials: FY
authors.lastname: Nakamura
authors.forename: Luiz A
authors.initials: LA
authors.lastname: Perandini
authors.forename: Nilo M
authors.initials: NM
authors.lastname: Okuno
authors.forename: Thiago O
authors.initials: TO
authors.lastname: Borges
authors.forename: Rômulo C M
authors.initials: RC
authors.lastname: Bertuzzi
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Robertson
mesh_terms: D004734:Energy Metabolism / Q000502:physiology*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D019344:Lactic Acid / Q000097:blood; D008297:Male; D010101:Oxygen Consumption; D010465:Perception / Q000502:physiology*; D005082:Physical Exertion / Q000502:physiology*; D012123:Pulmonary Ventilation
chemical_list: D019344:Lactic Acid