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Muscle activation timing

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  • Muscle activation timing

    Dear Colleagues,

    I am looking for data regarding the timing of activation and inactivation
    of different limb muscles during human motion (probably from EMG data). I
    am trying to relate these "on and off" (activation and inactivation) time
    points with salient kinematical events of walking like extrema of joint
    positions and angles. Any data associating muscle activation timing and
    kinematics would be very helpful. I'm sure this has been done many years
    back - I just don't know where to find accurate data.

    I initially looked into the book "Human Walking" by Inman et al. They had
    pictorial representation of the limb position and muscle activation but
    they only had a few frames to describe a full walking stride. The ISB
    database had some EMG data with better resolution (20 ms per frame), but
    there is no kinematic data along with it. Also, this database only had
    data on walking, I'm looking to compare different gaits as well.

    Could someone point me to the right place ?

    Sandhitsu Das
    University if Pennsylvania

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