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DOI: 10.1055/s-0030-1268490
© Georg Thieme Verlag KG Stuttgart · New York
Validation of a New Cycle Ergometer
Publication History
accepted after revision October 24, 2010
Publication Date:
16 December 2010 (online)
![](https://www.thieme-connect.de/media/sportsmed/201102/lookinside/thumbnails/10.1055-s-0030-1268490-1.jpg)
Abstract
The purpose of this study was to test the concurrent validity of the ICBE compared to the Monark® cycle ergometer by indirect dynamic calibration. 42 men were randomly submitted to 2 maximal stress tests with increments of 50 W at 2-min intervals. One test was performed on the Monark® bicycle (834/E) and the other on the ICBE. Cardiovascular, perceived exertion and hemodynamic responses were compared between the 2 bicycles. No differences (p>0.05) were observed in resting heart rate (HR), maximum HR, peak oxygen uptake (VO2P L·min−1 and VO2PmL·kg−1·min−1), and number of stages completed. High correlations (r>0.85) were found between HR and VO2P. Residual analysis indicated strong agreement between the 2 cycle ergometers in terms of VO2P L·min−1 [−0.36–0.30] and VO2P mL·kg−1·min−1 [−4.98–4.46]. Residual dispersion (r=0.25 for both) showed that the mathematical differences in VO2P L·min−1 and VO2P mL·kg−1·min−1 between cycle ergometers were independent. The correlation coefficient (r) and coefficient of determination (R2) between VO2P L·min−1 (r=0.90; R2=0.80) and VO2P mL·kg−1·min−1 (r=0.90; R2=0.81) obtained for the 2 cycle ergometers were high, whereas the standard error of the estimate was low (0.186 L·min−1 and 2.56 mL·kg−1·min−1, respectively). The ICBE presents concurrent validity for use in submaximal and maximal cardiopulmonary tests.
Key words
accuracy - cycling - calibration - testing - ergometry
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