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  • Title: Construct and concurrent validation of OMNI-Kayak rating of Perceived Exertion Scale.
    Author: Nakamura FY, Perandini LA, Okuno NM, Borges TO, Bertuzzi RC, Robertson RJ.
    Journal: Percept Mot Skills; 2009 Jun; 108(3):744-58. PubMed ID: 19725310.
    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.
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