Evaluation of musculoskeletal modelling parameters of the shoulder complex during humeral abduction above 90°
| Autor: | Maximilian Aurbach, Franz Süß, Jan Špička, Sebastian Dendorfer |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Shoulder 0206 medical engineering Biomedical Engineering Biophysics Shoulder joint 02 engineering and technology Kinematics Hill's muscle model Inverse dynamics Glenohumeral joint reaction force 03 medical and health sciences 0302 clinical medicine Physical medicine and rehabilitation EMG Scapula Deltoid muscle medicine Humans Orthopedics and Sports Medicine Range of Motion Articular Mathematics Rehabilitation Work (physics) Humerus 020601 biomedical engineering Biomechanical Phenomena body regions Musculoskeletal modelling medicine.anatomical_structure Clavicle Muscle model 030217 neurology & neurosurgery |
| Popis: | Based on electromyographic data and force measurements within the shoulder joint, there is an indication that muscle and resulting joint reaction forces keep increasing over an abduction angle of 90°. In inverse dynamics models, no single parameter could be attributed to simulate this force behaviour accordingly. The aim of this work is to implement kinematic, kinetic and muscle model modifications to an existing model of the shoulder (AnyBody™) and assess their single and combined effects during abduction up to 140° humeral elevation. The kinematics and the EMG activity of 10 test subjects were measured during humeral abduction. Six modifications were implemented in the model: alternative wrapping of the virtual deltoid muscle elements, utilization of a three element Hill model, strength scaling, motion capture driven clavicle elevation/protraction, translation of the GH joint in dependency of the acting forces and an alteration of the scapula/clavicle rhythm. From the six modifications, 16 different combinations were considered. Parameter combinations with the Hill model changed the resultant GH joint reaction force and led to an increase in force during abduction of the humerus above 90°. Under the premise of muscle activities and forces within the GH joint rising after 90° of humeral abduction, we propose that the Hill type muscle model is a crucial parameter for accurately modelling the shoulder. Furthermore, the outcome of this study indicates that the Hill model induces the co-contraction of the muscles of the shoulder without the need of an additional stability criterion for an inverse dynamics approach. |
| Databáze: | OpenAIRE |
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