Exercise Duration Affects Session Ratings of Perceived Exertion as a Function of Exercise Intensity

2021 ◽  
pp. 003151252110184
Author(s):  
Raille Silva de Jesus ◽  
Rebecca Évelyn Santos Batista ◽  
Vinícius Moura Eça Santos ◽  
David Ohara ◽  
Eduardo da Silva Alves ◽  
...  

Session ratings of perceived exertion (sRPE) are considered a practical marker of whole session exercise intensity, but its relationship to exercise volume has remained unclear. We analyzed the effects of exercise duration at different intensities on overall and differentiated sRPE. Sixteen males ( Mage = 22.6, SD = 2.2 years; Mheight = 176.4, SD = 5.8 cm; Mweight = 74.0, SD = 5.9 kg; and Mbody fat = 9.4, SD = 2.2%) performed 15 and 30 minute runs at speeds associated with RPE levels of two (weak), three (moderate) and five (strong) on Borg’s CR-10 scale during a previous graded exercise test. We used Foster’s scale to access sRPE 30 minutes after each trial. Significant increases in sRPE were found with increases in running speed (p < 0.01, η G2 = 0.48) and duration (p < 0.01, η G2 = 0.16), with a significant speed X duration interaction (p < 0.01, η G2 = 0.10). In addition, there was a significant effect for sRPE type (p = 0.01, η G2 = 0.05) in that overall sRPE was slightly lower than sRPE differentiated to legs and higher than sRPE differentiated to breathing through the trials. Changes in sRPE from 15 to 30-minute trials were minimal for the slow speed and weak sRPE (Cohen´s dz = 0.04 – 0.25) but got higher at the moderate (Cohen´s dz = 0.88 – 1.06) and strong (Cohen´s dz = 1.94 – 2.50) speeds and sRPEs. Thus, exercise duration affects sRPE in an intensity dependent manner. This finding has practical relevance for prescribing exercise, suggesting a need to target specific training loads or aims to optimize trainees’ retrospective perceptions of the exercise experience.

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

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.


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.


2013 ◽  
Vol 38 (9) ◽  
pp. 960-966 ◽  
Author(s):  
Mark A. Schafer ◽  
Fredric L. Goss ◽  
Robert J. Robertson ◽  
Elizabeth F. Nagle-Stilley ◽  
Kevin Kim

The purpose of this investigation was to determine if subjects can self-regulate exercise intensity during intermittent exercise by using ratings of perceived exertion. Thirty-one subjects completed an estimation trial maximal treadmill graded exercise test (GXT). Using the oxygen uptake and ratings of perceived exertion (RPE) from the GXT, target RPEs that corresponded to 50% and 70% of oxygen uptake reserve were determined. During the subsequent 20 min production trial, subjects titrated treadmill speed and grade to elicit the target RPEs that were presented in 2 counterbalanced orders (counterbalance order I (70%–50% of oxygen uptake reserve) or counterbalance order II (50%–70% of oxygen uptake reserve)). Heart rate (HR) and oxygen uptake were higher in the production trial compared with the estimation trial for counterbalance order I (p < 0.001) at an RPE that corresponded to 50% of oxygen uptake reserve. There was no difference in HR and oxygen uptake between the estimation and production trial for counterbalance order II (p < 0.05). HR was higher in the production trial compared with estimation trial for counterbalance order I (p < 0.05) at an RPE that corresponded to 70% of oxygen uptake reserve. There was no difference in HR between the estimation and production trials for counterbalance order II (p < 0.05). At an RPE that corresponded to 70% of oxygen uptake reserve, there was no difference in the oxygen uptake between the estimation and production trials (p < 0.05). A difference in HR (p < 0.05) and oxygen uptake (p < 0.05) between the 2 prescribed production trial intensities was indicated. The subjects were able to utilize RPE to self-regulate intensity during 20 min of exercise at varying intensity when beginning with the target RPE that corresponded to 50% of oxygen uptake reserve.


2012 ◽  
Vol 26 (3) ◽  
pp. 359-374 ◽  
Author(s):  
Jérémy B. J. Coquart ◽  
Yancy Dufour ◽  
Alain Groslambert ◽  
Régis Matran ◽  
Murielle Garcin

The purpose was to study the relationships between psychological factors and perceptually-based values (Ratings of Perceived Exertion: RPE and Estimated Time Limit: ETL). The researchers obtained the scores of several psychological factors (anxiety, extraversion-introversion, neuroticism-stability, self-esteem, motivation, psychological resistance and endurance, desire for success, social desirability, dynamism, competitiveness, activity control, risk-taking, emotional control, aggressiveness, sociability, cooperation, acceptance of a judgment, and leadership) among 23 cyclists. The cyclists performed a graded exercise test in which the researchers collected RPE and ETL at 150, 200, 250 and 300W. Correlations between RPE/ETL and psychological factors were examined. RPE was correlated with leadership, psychological resistance and endurance. ETL was significantly correlated with psychological endurance. These results suggest a link between psychological factors, effort perception, and the time limits predicted by teleoanticipation. These relationships varied according to intensity.


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.


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