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Differentiated perceived exertion and self-regulated wheelchair exercise

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journal contribution
posted on 03.10.2016 by Tom Paulson, Nicolette Bishop, Roger G. Eston, Vicky Goosey-Tolfrey
OBJECTIVE. To investigate the utility of the differentiated rating of perceived exertion (RPE) for the self-regulation of submaximal wheelchair propulsion in novice users. DESIGN. Each participant completed a submaximal incremental test and a graded test to exhaustion to determine peak oxygen consumption (Vo2peak) on a wheelchair ergometer. On a separate day, two 12-minute intermittent bouts consisting of three 4-minute stages were completed at individualized imposed power outputs equating to light (40% Vo 2peak) and moderate (60% Vo2peak) intensity exercise. On a third occasion, participants were assigned to either the overall group or the peripheral group and were required to self-regulate 12-minute intermittent exercise according to either overall RPE or peripheral RPE reported during the corresponding imposed intensity trial. SETTING. Laboratory facilities at a university. PARTICIPANTS. Preliminary population of able-bodied participants with no prior experience of wheelchair propulsion (N=18). INTERVENTIONS. Not applicable. MAIN OUTCOME MEASURES. Differences in oxygen consumption (V̇o2), heart rate, blood lactate concentration, and power output between the imposed and self-regulated exercise trials. RESULTS. No difference was found in physiological responses between the moderate-intensity imposed and RPE-regulated trials in the peripheral group, whereas a significant (P<.05) underproduction in V̇o2 (1.76±.31 vs 1.59±.25L/min) and blood lactate concentration (2.8±0.90 vs 2.21±.83mmol/L) was seen in the overall group. In contrast, a significant (P<.05) overproduction was seen in the peripheral group at a light exercise intensity, whereas no difference was found between all variables during the light-intensity imposed and RPE-regulated trials in the overall group. CONCLUSIONS. Peripheral RPE enabled a more precise self-regulation during moderate-intensity wheelchair exercise in novice users. In contrast, overall RPE provided a more accurate stimulus when performing light-intensity propulsion.

History

School

  • Sport, Exercise and Health Sciences

Published in

Archives of Physical Medicine and Rehabilitation

Volume

94

Issue

11

Pages

2269 - 2276

Citation

PAULSON, T. ... et al., 2013. Differentiated perceived exertion and self-regulated wheelchair exercise. Archives of Physical Medicine and Rehabilitation, 94 (11), pp.2269-2276.

Publisher

Elsevier (© American Congress of Rehabilitation Medicine)

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2013

ISSN

0003-9993

eISSN

1532-821X

Language

en

Exports