An instrumented wheel system for measuring 3-D pushrim kinetics during racing wheelchair propulsion
Deutscher übersetzter Titel: | Ein instrumentiertes Radsystem zur Messung der 3-D Kinetik des Schieberads während des Vortriebs eines Rennrollstuhls |
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Autor: | Limroongreungrat, Weerawat; Wang, Yong Tai; Chang, Li-Shan; Geil, Mark D. ; Johnson, Jeffery T. |
Erschienen in: | Research in sports medicine |
Veröffentlicht: | 17 (2009), 3, S. 182-194, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 1543-8627, 1543-8635 |
DOI: | 10.1080/15438620903120637 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201001001754 |
Quelle: | BISp |
Abstract
The purpose of this study was to design and validate an instrumented wheel system (IWS) that can measure 3-dimensional (3-D) pushrim forces during racing wheelchair propulsion. Linearity, precision, and percent error were determined for both static and dynamic conditions. For the static condition, the IWS demonstrated a high linearity (0.91</=slope </=1.41) with less than 2.72 percent error rate. Under dynamic loading, the IWS provided the well-matched measurement forces with the predicted values from the inverse dynamics method (0.96</=slope</=1.07) with less than 4.32 percent error rate. The results revealed that the IWS developed in the study can be used to measure 3-D pushrim reaction forces with acceptable accuracy. This was the first instrumented wheel device that can register 3-D pushrim forces during racing wheelchair propulsion. With the available kinetic information of the 3-D pushrim forces, the upper extremity joint reaction forces could be determined. Verf.-Referat