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A physiological and biomechanical comparison of over-ground, treadmill and ergometer wheelchair propulsion

journal contribution
posted on 16.03.2015, 14:41 by Barry Mason, John P. Lenton, Christof Leicht, Vicky Goosey-Tolfrey
The purpose of the study was to determine which laboratory-based modality provides the most valid physiological and biomechanical representation of over-ground sports wheelchair propulsion. Fifteen able-bodied participants with previous experience of wheelchair propulsion performed a 3-minute exercise trial at three speeds (4, 6 and 8 km {bullet operator} h-1) in three testing modalities over separate sessions: (i) over-ground propulsion on a wooden sprung surface; (ii) wheelchair ergometer propulsion; (iii) treadmill propulsion at four different gradients (0%, 0.7%, 1.0% and 1,3%). A 0.7% treadmill gradient was shown to best reflect the oxygen uptake (7.3 to 9.1% coefficient of variation (CV)) and heart rate responses (4.9 to 6.4% CV) of over-ground propulsion at 4 and 6 km {bullet operator} h-1. A 1.0% treadmill gradient provided a more valid representation of oxygen uptake during over-ground propulsion at 8 km {bullet operator} h-1 (8.6% CV). Physiological demand was significantly underestimated in the 0% gradient and overestimated in the 1.3% gradient and wheelchair ergometer trials compared to over-ground trials (P<0.05). No laboratory-based modality provided a valid representation of the forces applied during OG (≥ 18.4% CV). To conclude, a 0.7% treadmill gradient is recommended to replicate over-ground wheelchair propulsion at lower speeds (4 and 6 km {bullet operator} h-1) whereas a 1.0% gradient may be more suitable at 8 km {bullet operator} h-1. © 2013 © 2013 Taylor & Francis.

History

School

  • Sport, Exercise and Health Sciences

Published in

Journal of Sports Sciences

Volume

32

Issue

1

Pages

78 - 91

Citation

MASON, B. ... et al, 2014. A physiological and biomechanical comparison of over-ground, treadmill and ergometer wheelchair propulsion. Journal of Sports Sciences, 32 (1), pp.78-91.

Publisher

© Taylor & Francis

Version

VoR (Version of Record)

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

2014

Notes

This article is closed access.

ISSN

0264-0414

eISSN

1466-447X

Language

en

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