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Motion analysis system info.request

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  • Motion analysis system info.request

    Dear BIOMCH-L'ers,

    My request is directed at those of you who have a Peak 2D system in
    your labs. I have a few questions about the system. I hope this posting
    does not qualify as "commercial" in nature. I have already spoken to
    Peak, and I simply wish to get some information from those of you who
    use the system (for the purpose of objectivity). My questions are:

    1. Will the Peak system (2D) compute linear and angular kinematics of the
    "segment" (i.e., at the segment centre of mass)? If so, do you know whose
    centre of mass proportions are used (Dempster, Clauser, etc.).

    2. Is there a limit to the number of markers that can be digitized?

    3. When digitizing a grid for scaling purposes, are there limits to the
    number of points that can be used?

    4. Kinematically speaking, are there any limits to Peak's analysis capab-

    5. How well do the system's filtering options work (e.g., can you change
    the cutoff frequency of the digital filter to any value, is the filter
    a zero-lag filter, etc.)?

    Any other information and/or helpful comments you may wish to add
    would be most appreciated. Again, I hope that this is an "acceptable"
    request, and offer my sincere apologies if it is not. Those of you who
    have the system can be of great help to me. Thank you in advance for
    your time and your help. If there are enough, I will post a summary of
    the replies.


    John Barden
    Phone: (306) 585-4698
    Fax: (306) 585-4854
    Address: Faculty of Physical Activity Studies
    University of Regina
    Regina, Saskatchewan
    Canada S4S 0A2