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Perceptually regulated training does not influence the differentiated RPE response following 16-weeks of aerobic exercise in adults with spinal cord injury

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posted on 20.06.2019 by Michael Hutchinson, Sydney E. Valentino, Julia Totosy de Zepetnek, Maureen J. Macdonald, Vicky Goosey-Tolfrey
This study investigated the effect of prolonged familiarisation with ratings of perceived exertion (RPE) on the peripheral (RPEP) and central (RPEC) RPE responses to moderate-vigorous exercise in adults with spinal cord injury (SCI). RPEP and RPEC characterize the exertion of the working musculature and cardiorespiratory systems, respectively. Nineteen participants (41.4±11.4 years; 19.2±7.2 ml·kg-1·min-1) with chronic SCI were randomly assigned to RPE-guided (n = 11; EXP) or active control (n = 8; CON) groups. EXP performed 16-weeks of RPE-guided, supervised aerobic training for 20 mins, twice weekly, at RPE 3-6 (Category-Ratio 10 scale). CON had access to the same exercise equipment but received no specific advice on their exercise-training regime. Participants completed a graded exercise test, using an arm crank ergometer, pre- and post-training to determine peak oxygen uptake (V̇O2peak), with RPEP and RPEC recorded every minute throughout tests. Sixteen weeks training did not improve V̇O2peak. RPE decreased post-training at 50% (p = 0.02) and 70% V̇O2peak (p = 0.03), though there was no effect of group at either intensity (p = 0.54, 0.42 respectively). At 70% V̇O2peak RPEP was greater than RPEC (4.2±1.7 vs 3.4±1.8, p < 0.005). Training with RPE-guidance for 16-weeks had no additional effect on the differentiated RPE responses to moderate-vigorous exercise in adults with SCI.

Funding

Ontario Neurotrauma Foundation, Peter Harrison Foundation, and Loughborough University Sport & Exercise Beacon.

History

School

  • Sport, Exercise and Health Sciences

Published in

Applied Physiology, Nutrition, and Metabolism

Volume

45

Issue

2

Pages

129 - 134

Citation

HUTCHINSON, M.J. ... et al, 2019. Perceptually regulated training does not influence the differentiated RPE response following 16-weeks of aerobic exercise in adults with spinal cord injury. Applied Physiology, Nutrition, and Metabolism, 45 (2), pp.129-134.

Publisher

NRC Research Press © The Authors

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/

Acceptance date

12/06/2019

Publication date

2019-06-28

Notes

This paper was accepted for publication in the journal Applied Physiology, Nutrition, and Metabolism and the definitive published version is available at https://doi.org/10.1139/apnm-2019-0062.

ISSN

1715-5312

eISSN

1715-5320

Language

en

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