title: Validation of a new cycle ergometer.
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 (VO(2P) L·min(-1) and VO(2P) mL·kg(-1)·min(-1)), and number of stages completed. High correlations (r>0.85) were found between HR and VO (2P). Residual analysis indicated strong agreement between the 2 cycle ergometers in terms of VO(2P) L·min(-1) [-0.36-0.30] and VO(2P) mL·kg(-1)·min(-1) [-4.98-4.46]. Residual dispersion (r=0.25 for both) showed that the mathematical differences in VO(2P) L·min(-1) and VO(2P) mL·kg(-1)·min(-1) between cycle ergometers were independent. The correlation coefficient (r) and coefficient of determination (R(2)) between VO(2P) L·min(-1) (r=0.90; R (2)=0.80) and VO(2P) mL·kg(-1)·min(-1) (r=0.90; R(2)=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.
authors.affiliation: UNIEURO University Center, Brasília, Brazil. mfglaner@gmail.com
authors.forename: M F
authors.initials: MF
authors.lastname: Glaner
authors.forename: R A S
authors.initials: RA
authors.lastname: Silva
mesh_terms: D000328:Adult; D000886:Anthropometry; D002138:Calibration; D005080:Exercise Test / Q000295:instrumentation* / Q000592:standards*; D006339:Heart Rate; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D005082:Physical Exertion; D015203:Reproducibility of Results