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Prediction of peak oxygen uptake from differentiated ratings of perceived exertion during wheelchair propulsion in trained wheelchair sportspersons

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dc.contributor.authorGoosey Tolfrey, V.L.
dc.contributor.authorPaulson, T.A.W.
dc.contributor.authorTolfrey, K.
dc.contributor.authorEston, R.G.
dc.date.issued2014
dc.description.abstractPurpose: To assess the validity of predicting peak oxygen uptake (V̇O2peak) from differentiated ratings of perceived exertion (RPE) obtained during submaximal wheelchair propulsion. Methods: Three subgroups of elite male wheelchair athletes [nine tetraplegics (TETRA), nine paraplegics (PARA), eight athletes without spinal cord injury (NON-SCI)] performed an incremental speed exercise test followed by graded exercise to exhaustion (V̇O2peak). Oxygen uptake (V̇O2), heart rate (HR) and differentiated RPE (Central RPEC, Peripheral RPEP and Overall RPEO) were obtained for each stage. The regression lines for the perceptual ranges 9-15 on the Borg 6-20 scale ratings were performed to predict (V̇O2peak). Results: There were no significant within-group mean differences between measured V̇O2peak (mean 1.50 ± 0.39, 2.74 ± 0.48, 3.75 ± 0.33 L min-1 for TETRA, PARA and NON-SCI, respectively) and predicted V̇O2peak determined using HR or differentiated RPEs for any group (P > 0.05). However, the coefficients of variation (CV %) between measured and predicted V̇O2peak using HR showed high variability for all groups (14.3, 15.9 and 9.7 %, respectively). The typical error ranged from 0.14 to 0.68 L min-1 and the CV % between measured and predicted V̇O 2peak using differentiated RPE was ≤11.1 % for TETRA, ≤7.5 % for PARA and ≤20.2 % for NON-SCI. Conclusions: Results suggest that differentiated RPE may be used cautiously for TETRA and PARA athletes when predicting V̇O2peak across the perceptual range of 9-15. However, predicting V̇O2peak is not recommended for the NON-SCI athletes due to the large CV %s (16.8, 20.2 and 18.0 %; RPE;b, RPE;b and RPE;b, respectively).
dc.identifier.citationEuropean Journal of Applied Physiology, 2014; 114(6):1251-1258
dc.identifier.doi10.1007/s00421-014-2850-9
dc.identifier.issn1439-6319
dc.identifier.issn1439-6327
dc.identifier.urihttps://hdl.handle.net/1959.8/159332
dc.language.isoen
dc.publisherSpringer
dc.rightsCopyright 2014 Springer-Verlag
dc.source.urihttps://doi.org/10.1007/s00421-014-2850-9
dc.subjectaerobic capacity
dc.subjectexercise prescription
dc.subjectparaplegic
dc.subjectRPE
dc.subjecttetraplegic
dc.titlePrediction of peak oxygen uptake from differentiated ratings of perceived exertion during wheelchair propulsion in trained wheelchair sportspersons
dc.typeJournal article
pubs.publication-statusPublished
ror.mmsid9915910090401831

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