A Real-Time, 3-D Musculoskeletal Model for Dynamic Simulation of Arm Movements

Edward Chadwick, Dimitra Blana, Antonie van den Bogert, Robert Kirsch

    Research output: Contribution to journalArticlepeer-review

    71 Citations (SciVal)


    Neuroprostheses can be used to restore movement of the upper limb in individuals with high-level spinal cord injury. Development and evaluation of command and control schemes for such devices typically require real-time, "patient-in-the-loop" experimentation. A real-time, 3-D, musculoskeletal model of the upper limb has been developed for use in a simulation environment to allow such testing to be carried out noninvasively. The model provides real-time feedback of human arm dynamics that can be displayed to the user in a virtual reality environment. The model has a 3-DOF glenohumeral joint as well as elbow flexion/extension and pronation/supination and contains 22 muscles of the shoulder and elbow divided into multiple elements. The model is able to run in real time on modest desktop hardware and demonstrates that a large-scale, 3-D model can be made to run in real time. This is a prerequisite for a real-time, whole-arm model that will form part of a dynamic arm simulator for use in the development, testing, and user training of neural prosthesis systems.
    Original languageEnglish
    Pages (from-to)941-948
    Number of pages8
    JournalIEEE Transactions on Biomedical Engineering
    Issue number4
    Publication statusPublished - 01 Apr 2009


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