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Inaccuracy of the HR Reserve vs. V˙ O2 Reserve Relationship during Prone Arm-paddling Exercise in Surfboard Riders

Mendez-Villanueva, Alberto and Perez-Landaluce, Javier and Fernandez-Garcia, Benjamin and Terrados, Nicolas and Bishop, David (2010) Inaccuracy of the HR Reserve vs. V˙ O2 Reserve Relationship during Prone Arm-paddling Exercise in Surfboard Riders. Journal of Physiological Anthropology, 29 (6). pp. 189-195. ISSN 1880-6791 (print) 1880-6805 (online)

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Abstract

Previous studies have demonstrated that during lower-body exercise the percentage of heart rate reserve (%HRR) is equivalent to the percentage of the oxygen consumption reserve (%V˙O(2R)) but not to a percentage of the peak oxygen consumption (%V˙O(2peak)). The current study examined these relationships in trained surfboard riders (surfers) during upper-body exercise. Thirteen well-trained competitive surfers performed a stepwise, incremental, prone arm-paddling exercise test to exhaustion. For each subject, data obtained at the end of each stage (i.e., HR and V˙O(2) values) were expressed as a percentage of HRR, V˙O(2peak), and V˙O(2R) respectively and used to determine the individual %HRR-%V˙O(2peak) and %HRR-%V˙O(2R) relationships. Mean slope and intercept were calculated and compared with the line of identity (slope=1, intercept=0). The %HRR versus %V˙O(2R) regression mean slope (0.88±0.06) and intercept (20.82±4.57) were significantly different (p<0.05) from 1 and 0, respectively. Similarly, the regression of %HRR versus %V˙O(2peak) resulted in a line that differed in the slope (p<0.05) but not in the intercept (p=0.94) from the line of identity. Predicted values of %HRR were significantly higher (p<0.05) from indicated values of %V˙O(2R) for all the intensities ranging from 35% to 95% V˙O(2R). Unlike results found for lower-body exercise, a given %HRR during prone upper-body exercise was not equivalent to its corresponding %V˙O(2R). Thus, to ensure more targeted exercise intensity during arm-paddling exercise, individual HR-V˙O(2) equations should be used.

Item Type: Article
Uncontrolled Keywords: ResPubID21146, exercise intensity, prone position, arm-paddling exercise, competitive surfers
Subjects: Faculty/School/Research Centre/Department > Institute of Sport, Exercise and Active Living (ISEAL)
FOR Classification > 1106 Human Movement and Sports Science
SEO Classification > 970111 Expanding Knowledge in the Medical and Health Sciences
Depositing User: VUIR
Date Deposited: 21 May 2012 01:57
Last Modified: 04 Feb 2015 06:21
URI: http://vuir.vu.edu.au/id/eprint/7045
DOI: 10.2114/jpa2.29.189
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Citations in Scopus: 0 - View on Scopus

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