Biomechanical model for the determination of the forces acting on the pulley system
| Deutscher übersetzter Titel: | Biomechanisches Modell zur Bestimmung der Kräfte, die auf das Bandsystem einwirken |
|---|---|
| Autor: | Vigouroux, Laurent; Quaine, Franck; Schöffl, Isabelle; Schöffl, Volker |
| Erschienen in: | The engineering of sport 6. Volume 2: Developments for disciplines : Proceedings of the ISEA 2006 - Munich, Germany |
| Veröffentlicht: | New York (N.Y.): Springer (Verlag), 2006, S. 247-252, Lit. |
| Forschungseinrichtung: | International Sports Engineering Association |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Sammelwerksbeitrag |
| Medienart: | Gedruckte Ressource |
| Sprache: | Englisch |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU200909004870 |
| Quelle: | BISp |
Abstract
In order to determine the forces acting on the A2 and A4 pulley a mathematical model proposed by Hume, Hutchinson, Jaeger and Hunter (1991) was used. The parameters necessary for this determination include the angle of flexion, the positioning of the pulley with respect to the center of rotation in the PIP joint, the relative mismatch between bone and tendon width at the location of the respective pulleys as well as the tendon height at this position. This model was further developed to include the stiffness of the respective pulley, as well as the fact, that there are two flexor tendons of which only one passes through both pulleys. Each parameter was then evaluated using a sensitivity analysis proposed by Fasham, Ducklow and McKelvie (1990) in order to determine their relative importance for the outcome of the model. The most important parameter proofed to be the positioning of the pulley with respect to the center of rotation in the PIP (proximal interphalangeal) joint. This observation enabled us to give the best possible placement for a pulley graft after pulley rupture. Verf.-Referat