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observable kinematic differences

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  • observable kinematic differences

    Hello, everyone. I am working on some research involving sports movements and
    being able to distinguish between two similar, yet distinct actions. Has anyone
    come across literature (probably in the SVA/DVA field) that defines exactly how
    much of an angle difference one can detect from a given distance. For instance,
    if I am standing about 50 feet away, how large of a difference in, say, knee
    flexion does there need to be between the two competing athletes in order for me
    to notice the difference. My guess is somewhere around 15 to 20 degrees but
    this is honestly just a guess. I think it would be a function of the viewing
    distance and the size of the body parts, but so far I have not been able to
    locate this information. Any and all help would be greatly appreciated. I wish
    everyone a happy, healthy, and safe holiday season!

    Dave Fortenbaugh, M.S.
    Graduate Research Assistant
    Biomechanics Laboratory
    Deparment of Industrial Engineering
    University of Miami