Prediction of peak oxygen uptake from sub-maximal ratings of perceived exertion elicited during a graded exercise test in obese women

2009 ◽  
Vol 46 (6) ◽  
pp. 1150-1153 ◽  
Author(s):  
Jeremy B. J. Coquart ◽  
Christine Lemaire ◽  
Alain-Eric Dubart ◽  
Claire Douillard ◽  
David-Pol Luttenbacher ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Exercise Test ◽  
Perceived Exertion ◽  
Peak Oxygen Uptake ◽  
Obese Women ◽  
Ratings Of Perceived Exertion ◽  
Graded Exercise Test ◽  
Graded Exercise

A perceptually regulated, graded exercise test predicts peak oxygen uptake during treadmill exercise in active and sedentary participants

2012 ◽  
Vol 112 (10) ◽  
pp. 3459-3468 ◽  
Author(s):  
Roger Eston ◽  
Harrison Evans ◽  
James Faulkner ◽  
Danielle Lambrick ◽  
Harran Al-Rahamneh ◽  
...  
Keyword(s):  
Oxygen Uptake ◽  
Exercise Test ◽  
Treadmill Exercise ◽  
Peak Oxygen Uptake ◽  
Graded Exercise Test ◽  
Graded Exercise

A Perceptually-regulated Exercise Test Predicts Peak Oxygen Uptake in Older Active Adults

2015 ◽  
Vol 23 (2) ◽  
pp. 205-211 ◽  
Author(s):  
Ashleigh E. Smith ◽  
Roger G. Eston ◽  
Belinda Norton ◽  
Gaynor Parfitt
Keyword(s):  
Older Adults ◽  
Oxygen Uptake ◽  
Exercise Test ◽  
Perceived Exertion ◽  
Peak Oxygen Uptake ◽  
Middle Aged ◽  
Ratings Of Perceived Exertion ◽  
Middle Aged Adults ◽  
Active Adults

Peak oxygen uptake (V̇O2peak) is reliably predicted in young and middle-aged adults using a submaximal perceptually-regulated exercise test (PRET). It is unknown whether older adults can use a PRET to accurately predict V̇O2peak. In this study, the validity of a treadmill-based PRET to predict V̇O2peak was assessed in 24 participants (65.2 ± 3.9 years, 11 males). The PRET required a change in speed or incline corresponding to ratings of perceived exertion (RPE) 9, 11, 13, and 15. Extrapolation of submaximal V̇O2 from the PRET to RPE endpoints 19 and 20 and age-predicted HRmax were compared with measured V̇O2peak. The V̇O2 extrapolated to both RPE19 and 20 over-predicted V̇O2peak (p < .001). However, extrapolating V̇O2 to age-predicted HRmax accurately predicted V̇O2peak (r = .84). Results indicate older adults can use a PRET to predict V̇O2peak by extrapolating V̇O2 from submaximal intensities to an age-predicted HRmax.

scholarly journals Intensity selection and regulation using the OMNI scale of perceived exertion during intermittent exercise

2013 ◽  
Vol 38 (9) ◽  
pp. 960-966 ◽  
Author(s):  
Mark A. Schafer ◽  
Fredric L. Goss ◽  
Robert J. Robertson ◽  
Elizabeth F. Nagle-Stilley ◽  
Kevin Kim
Keyword(s):  
Oxygen Uptake ◽  
Perceived Exertion ◽  
Intermittent Exercise ◽  
Ratings Of Perceived Exertion ◽  
Graded Exercise Test ◽  
Treadmill Speed ◽  
Graded Exercise ◽  
Omni Scale ◽  
Counterbalance Order ◽  
Estimation Trial

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.

Development of an On-Water Graded Exercise Test for Flat-Water Sprint Kayak Athletes

2019 ◽  
Vol 14 (9) ◽  
pp. 1244-1249 ◽  
Author(s):  
Chelsie E. Winchcombe ◽  
Martyn J. Binnie ◽  
Matthew M. Doyle ◽  
Cruz Hogan ◽  
Peter Peeling
Keyword(s):  
Oxygen Consumption ◽  
Exercise Test ◽  
Repeated Measures ◽  
Perceived Exertion ◽  
Intraclass Correlation ◽  
Rating Of Perceived Exertion ◽  
Stroke Rate ◽  
Repeated Measures Design ◽  
Graded Exercise Test ◽  
Graded Exercise

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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