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Mechanical effect of an ankle brace during landing:preliminary kinematic results

International Society of Biomechanics, ISB
Publication Date
  • Physics


Title: A PATIENT-SPECIFIC MUSCULOSKELETAL MANDIBLE MODEL USING FORCE-DEPENDENT KINEMATICS 1Michael Skipper Andersen, 2Mark de Zee 1Department of Mechanical and Manufacturing Engineering, Aalborg University, email: [email protected] 2Department of Health Science and Technology, Aalborg University Summary (max. 40 words) Force-dependent kinematics (FDK) was used to compute the joint reaction forces in the temporomandibular joint and the results compared to a planar constraint model. FDK model captured the change in reaction force direction due to the mandibular fossa shape. Abstract body (max. 500 words) Introduction Although only few joints in the human body can reasonably be considered idealized joints, most inverse dynamics-based musculoskeletal models available in the literature apply such models [1,2]. One example is the model of the temporomandibular joint (TMJ) reported by de Zee et al. [2,3], where it was modelled as a planar constraint and a unilateral reaction force. However, in reality, the detailed joint mechanics are governed by the contact between the condyle and the mandibular fossa, the ligaments, the muscle forces and the external load. To enable modeling of complex joints in terms of force elements and still allow computation of muscle forces, joint reactions and ligament forces in an inverse dynamics-like manner, Andersen et al. [4] recently proposed the Force-dependent kinematics (FDK) analysis framework. FDK computes the detailed joint motions as well as the muscle and joint reaction forces under an assumption of static force equilibrium within the joint. In this study, we extended the previously reported patient-specific mandible model of de Zee et al. [3] with a detailed TMJ joint model taking into acount the joint contact forces and the Temporomadibular ligaments using the FDK methodology. Patients & Methods A patient-specific mandible model was built in the AnyBody Model

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