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  • Title: Differential perceived exertion measured using a new visual analogue scale during pedaling and running.
    Author: Ueda T, Nabetani T, Teramoto K.
    Journal: J Physiol Anthropol; 2006 Mar; 25(2):171-7. PubMed ID: 16679714.
    Abstract:
    The purpose of this study was to evaluate the differential perceived exertion measured using a new set of Visual Analogue Scales (VAS) during pedaling and running. The subjects were eleven healthy males. They performed an incremental maximal test and then three 4-min stages of exercise, for both pedaling and running. During the tests, VO2, V(CO2), V(E), f, and HR were monitored continuously. Bla and perceptual variables including VAS consisting of four scales (VAS 1-VAS 4) and Borg's RPE were measured at the end of each stage. Although the VO2 (%VO2max)) and HR for both pedaling and running were not significantly different, Bla in pedaling was significantly higher than that in running. A significant interaction (mode, stage) was also obtained. The VAS 1 of pedaling was significantly higher than that of running. A significant interaction in VAS 1 (mode, stage) was obtained. The VAS 2 of pedaling was significantly higher than that of running. The subjects indicated that local pain became stronger than central pain in pedaling, but they were almost equal in running. In both pedaling and running, leg pain became stronger than arm pain (VAS 3). VAS 4 showed that during running, breathing difficulty and heart pain were almost equal in perceived intensity. However, during pedaling, breathing difficulty became greater than heart pain. Thus, a new four-part visual analogue scale was found to be useful for monitoring exercise intensity. In addition, the new VAS gave us more information in relation to the differential perceived exertion reflected in the different physiological responses obtained by different exercise modes.
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