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Comparison of shoulder kinematic chain models and their influence on kinematics and kinetics in the study of manual wheelchair propulsion

Article dans une revue avec comité de lecture
Author
HYBOIS, Samuel
PUCHAUD, Pierre
247362 École normale supérieure - Rennes [ENS Rennes]
414778 Centre de recherche des écoles de Saint-Cyr Coëtquidan [Guer] [CREC]
491419 Analysis-Synthesis Approach for Virtual Human Simulation [MIMETIC]
BOURGAIN, Maxime
LOMBART, Antoine
BASCOU, Joseph
175453 Arts et Métiers ParisTech
LAVASTE, François
FODÉ, Pascale
SAURET, Christophe
ccPILLET, Helene
99538 Laboratoire de biomécanique [LBM]
466360 Institut de Biomecanique Humaine Georges Charpak

URI
http://hdl.handle.net/10985/15835
DOI
10.1016/j.medengphy.2019.06.002
Date
2019
Journal
Medical Engineering and Physics

Abstract

Several kinematic chains of the upper limbs have been designed in musculoskeletal models to investi- gate various upper extremity activities, including manual wheelchair propulsion. The aim of our study was to compare the effect of an ellipsoid mobilizer formulation to describe the motion of the scapu- lothoracic joint with respect to regression-based models on shoulder kinematics, shoulder kinetics and computational time, during manual wheelchair propulsion activities. Ten subjects, familiar with manual wheelchair propulsion, were equipped with reflective markers and performed start-up and propulsion cycles with an instrumented field wheelchair. Kinematic data obtained from the optoelectronic system and kinetic data measured by the sensors on the wheelchair were processed using the OpenSim software with three shoulder joint modeling versions (ellipsoid mobilizer, regression equations or fixed scapula) of an upper-limb musculoskeletal model. As expected, the results obtained with the three versions of the model varied, for both segment kinematics and shoulder kinetics. With respect to the model based on regression equations, the model describing the scapulothoracic joint as an ellipsoid could capture the kinematics of the upper limbs with higher fidelity. In addition, the mobilizer formulation allowed to com- pute consistent shoulder moments at a low computer processing cost. Further developments should be made to allow a subject-specific definition of the kinematic chain.

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