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  • alternate legs

    Dear Biomch-L,

    Thank you to everyone who replied to my earlier enquiry on alternating legs.
    I realised from the replies that I had not explained the question properly
    (sorry). Basically in all of the data and papers written on walking the data
    is provided for only one leg and does not compare the gait patterns of both
    with each other. In the paper (unpublished) that I am reading, there is a
    graph for hip, knee and ankle angles over 4 seconds starting from heel
    strike however I was not sure as to how many steps were taken over this
    time. I have assumed that over the 4 seconds there is one full step with
    second foot heel strike after 2 seconds.

    The problem comes when I am trying to use the gait data for the second leg.
    At what point, therefore in the gait cycle does the second leg start moving
    if modelling gait initiation. I would assume from observation that the
    second leg joint angles are not zero during the swing phase of the first leg
    but start moving almost immediately.

    Does anyone have any ideas or information on this problem? Any suggestions
    would be welcome.

    Rosemary Reid
    Loughborough University

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