Velhorst, V. (Vera) (2019) Physiological and kinetic comparison of overground, treadmill, and ergometer steady-state wheelchair propulsion. thesis, Human Movement Sciences.
Full text available on request.Abstract
Purpose: The aim of this study was to compare physiological and biomechanical aspects of manual wheelchair propulsion in a group of able-bodied persons while propelling on a wheelchair ergometer, wheelchair treadmill and overground at matched power output. Methods: A group of 19 able-bodied participants were included in the study. Participants underwent two training sessions before taking part in a measurement session that included propelling a wheelchair for 3x4 minutes on each of the different modalities. Physiological data and propulsion kinetics were recorded with a spirometer and OptiPush measurement wheel, respectively. Results: A repeated measures multivariate analysis of variance showed no differences in power output or velocity between modalities (p=0.189). Two-way mixed, single measures, absolute agreement intra-class correlation (ICC) coefficients were calculated to compare the different modalities to one another. Good comparability (ICC > 0.85) was only found for comparisons of heart rate, the overground vs. ergometer and treadmill vs. ergometer comparisons for contact angle, and the overground vs. treadmill comparison for fraction of effective force. Conclusion: Comparability was poor to moderate for most physiological and kinetic characteristics, with the exception of a few comparisons of heart rate, contact angle and fraction of effective force. Possible differences in physiological cost and propulsion kinetics exist in able-bodied persons when propelling overground, on a treadmill, or on an ergometer. Keywords: Propulsion biomechanics, intra-class correlation, physiological cost, gross mechanical efficiency
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Vegter, dr. R.J.K. and Klerk, R. de |
| Faculty: | Medical Sciences |
| Date Deposited: | 24 May 2022 09:58 |
| Last Modified: | 24 May 2022 09:58 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3432 |
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