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Measuring hand forces during wheelchair transfers

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  • Measuring hand forces during wheelchair transfers


    We would like to calculate shoulder moments in SCI patients performing
    transfers from their wheelchair into a vehicle mock-up. We should be
    able to capture body segment motions, but obtaining accurate forces at
    the hands has proven difficult. The main problem is that the large
    number of handholds employed during these transfers makes using force
    transducers at each handhold infeasible. We could mount the entire
    vehicle mock-up on a few force plates and the wheelchair on another, but
    this would not provide valid forces for the entire transfer. Some kind
    of force-sensing glove would seem to be our best option, but existing
    glove systems are quite expensive and were developed for pressure
    mapping, which means that adapting them to our purposes would be
    challenging. Has anyone had any success with calculating reaction forces
    for inverse dynamics using any kind of glove system or solved a similar
    problem with a method we have not yet considered?

    Brian Schulz, Ph.D.
    Program Specialist
    VISN 8 Patient Safety Research Center (118M)
    James A. Haley Veterans' Hospital
    11605 North Nebraska Ave.
    Tampa, FL 33612-5738
    Phone: (813) 558-3944
    Fax: (813) 558-3990