Prediction of Peak Oxygen Consumption From the Ratings of Perceived Exertion During a Graded Exercise Test and Ramp Exercise Test in Able-Bodied Participants and Paraplegic Persons

2011 ◽  
Vol 92 (2) ◽  
pp. 277-283 ◽  
Author(s):  
Harran Q. Al-Rahamneh ◽  
Roger G. Eston
2019 ◽  
Vol 14 (9) ◽  
pp. 1244-1249 ◽  
Author(s):  
Chelsie E. Winchcombe ◽  
Martyn J. Binnie ◽  
Matthew M. Doyle ◽  
Cruz Hogan ◽  
Peter Peeling

Purpose: To determine the reliability and validity of a power-prescribed on-water (OW) graded exercise test (GXT) for flat-water sprint kayak athletes. Methods: Nine well-trained sprint kayak athletes performed 3 GXTs in a repeated-measures design. The initial GXT was performed on a stationary kayak ergometer in the laboratory (LAB). The subsequent 2 GXTs were performed OW (OW1 and OW2) in an individual kayak. Power output (PWR), stroke rate, blood lactate, heart rate, oxygen consumption, and rating of perceived exertion were measured throughout each test. Results: Both PWR and oxygen consumption showed excellent test–retest reliability between OW1 and OW2 for all 7 stages (intraclass correlation coefficient > .90). The mean results from the 2 OW GXTs (OWAVE) were then compared with LAB, and no differences in oxygen consumption across stages were evident (P ≥ .159). PWR was higher for OWAVE than for LAB in all stages (P ≤ .021) except stage 7 (P = .070). Conversely, stroke rate was lower for OWAVE than for LAB in all stages (P < .010) except stage 2 (P = .120). Conclusions: The OW GXT appears to be a reliable test in well-trained sprint kayak athletes. Given the differences in PWR and stroke rate between the LAB and OW tests, an OW GXT may provide more specific outcomes for OW training.


2009 ◽  
Vol 46 (6) ◽  
pp. 1150-1153 ◽  
Author(s):  
Jeremy B. J. Coquart ◽  
Christine Lemaire ◽  
Alain-Eric Dubart ◽  
Claire Douillard ◽  
David-Pol Luttenbacher ◽  
...  

2001 ◽  
Vol 10 (1) ◽  
pp. 48-56 ◽  
Author(s):  
John A. Mercer ◽  
Janet S. Dufek ◽  
Barry T. Bates

Objective:To compare peak oxygen consumption (VO2) and heart rate (HR) during treadmill (TM) running and exercise on an elliptical trainer (ET).Design:A graded exercise test (GXT) during TM running and ET exercise.Participants:Physically active college students (N = 14; 25 ± 4.6 years). Each completed a TM GXT and ET GXT on separate days.Results:There were no differences in either VO2peak or peak HR between TM (53.0 ± 7.7 ml · kg–1 · min–1, 193.4 ± 9.4 bpm) and ET (51.6 ± 10.7 ml · kg–1 · min–1, 191.2 ± 11.5 bpm; P > .05). Correlations between HR and VO2 data for all stages of exercise for all subjects were similar between machines (ET: r = .88; TM: r = .95; P > .05).Conclusion:No adjustments to the target HR used during TM running are necessary when using the ET.


1996 ◽  
Vol 82 (1) ◽  
pp. 139-146 ◽  
Author(s):  
Christopher C. Dunbar ◽  
Michael I. Kalinski ◽  
Robert J. Robertson

An accurate exercise prescription for ratings of perceived exertion has previously depended on data from a maximal graded exercise test during which RPE was measured. In many clinical settings RPE is not measured; in many fitness settings maximal testing is not feasible. A new method using treadmill speed or power output of a cycle ergometer at an RPE of 13 from a submaximal test which can be used in these situations is described. We evaluated the accuracy of this method at 50%, 60%, 70%, and 85% VO2max. A total of 160 target RPEs were developed using traditional procedures and the new method. No significant differences between RPEs obtained with the two techniques were found. The mean difference was less than one unit of RPE. It appears that the new method is valid for intensities of 50% to 85% VO2max and that data from either the cycle ergometer or the treadmill can be used to prepare exercise prescriptions.


2003 ◽  
Vol 28 (1) ◽  
pp. 53-63 ◽  
Author(s):  
Anthony D. Mahon ◽  
David M. Plank ◽  
Molly J. Hipp

This study examined ratings of perceived exertion (RPE) using Borg's 6-20 scale at 50 W, 80 W, and ventilatory threshold (VT) in 10-year-old children (n = 15) during two different graded exercise tests. Power output was increased by 10 W•min−1 in one protocol and by 30 W•3 min−1 in the other. The cardiorespiratory responses at VT and peak exercise were similar between protocols. At 50 W and 80 W the cardiorespiratory responses were generally lower (P < 0.05) in the 10-W trial. However, RPE was 11.5 ± 2.9 and 12.1 ± 3.2 at 50 W and 15.1 ± 2.7 and 15.3 ± 2.8 at 80 W in the 10-W and 30-W trials, respectively (P > 0.05). The RPE at VT was 13.9 ± 2.4 in the 10-W trial and 12.4 ± 2.4 in the 30-W trial (P < 0.05). In that variations in submaximal RPE did not coincide with variations in central mediators of exertion, locals cues of exertion may have provided the dominate sensory signal. Key words: ventilatory threshold, cardiorespiratory measures, exercise test, peak VO2, cycle ergometry, RPE


1996 ◽  
Vol 83 (1) ◽  
pp. 91-97 ◽  
Author(s):  
Christopher C. Dunbar ◽  
Diego A. Bursztyn

The Borg Ratings of Perceived Exertion scale (RPE) has been shown to be a valuable tool for prescribing exercise; however, use of RPE-based exercise prescriptions in field settings has often been problematic because RPE data derived from maximal exercise testing are needed. We describe a simple method for obtaining target RPEs for exercise training from submaximal exercise data. Target RPEs for 50%, 60%, 70%, and 85% VO2peak exercise intensities obtained using the new method did not differ significantly from those obtained using data from a maximal graded exercise test. The mean difference was less than one RPE unit and was not significant (p<.05). Therefore, the Slope Method appears to be valid for developing RPE-based exercise prescriptions.


1996 ◽  
Vol 83 (2) ◽  
pp. 384-386 ◽  
Author(s):  
Christopher C. Dunbar ◽  
William W. Edwards ◽  
E. L. Glickman-Weiss ◽  
Patricia Conley ◽  
Antonio Quiroz

It is often difficult to use heart rate to prescribe exercise for cardiac patients due to the effects of medications and procedures such as cardiac transplantation. Ratings of Perceived Exertion (RPE) is the preferred method of regulating exercise intensity in these situations. An RPE-based exercise prescription has previously depended on perceptual data from a maximal Graded Exercise Test (GXT). Recently, using 13 healthy subjects, we validated a Three-point RPE for prescribing exercise using RPE which can be used when ratings from a GXT are not available. Currently, we examined the accuracy of this method for developing target RPEs for patients in Phase II cardiac rehabilitation. Such target RPEs did not differ from those obtained using standard procedures. We conclude that the Three-point Method is valid for preparing RPE-based exercise prescriptions for Phase II cardiac rehabilitation patients.


2008 ◽  
Vol 33 (5) ◽  
pp. 870-879 ◽  
Author(s):  
John P. Lenton ◽  
Neil E. Fowler ◽  
Lucas van der Woude ◽  
Victoria L. Goosey-Tolfrey

The purpose of this study was to examine the role of wheeling experience on efficiency, metabolic cost, and differentiated ratings of perceived exertion (RPEs) during synchronous and asynchronous hand-rim propulsion with varying arm frequencies. Fourteen able-bodied (AB) male participants and 8 male wheelchair sportsmen (WS) performed tests of peak oxygen consumption for both propulsion modes. Subsequently, 2 series of five 4-min sub-maximal exercise bouts were completed at an individualized velocity (60% of peak oxygen consumption). Arm frequencies consisted of the freely chosen frequency (FCF), followed by 4 counter-balanced paced trials pushing at 60%, 80%, 120%, and 140% of the FCF. Efficiency indices (gross, GE; work, WE) were determined and peripheral (RPE-P), central (RPE-C), and overall (RPE-O) RPEs were recorded. The GE (6.4% vs. 8.4%) and WE (11.3% vs. 15.1%) were significantly higher in WS than in AB (p = 0.001). Trends in the oxygen consumption, GE, and WE data were similar in both groups, propulsion mode, and arm frequency. Data suggest that 80% FCF resulted in improved efficiency for both propulsion mode and group, although the differences between those arm frequencies immediately above and below were non-significant. Lower RPE scores corresponded with higher efficiency values. Regardless of group there were significant differences (p = 0.001) between the differentiated RPE measures, whereby RPE-P was on average always the highest score (13.1) and RPE-C the lowest (11.1; RPE-O was 12.2). In conclusion, despite the anticipated differences in efficiency between the WS and AB participants, this study confirmed that psycho-physiological measures produce similar trends to physiological measures with manipulations of both arm frequency and propulsion mode.


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