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The intrinsic foot muscles and balance .

Discussion in 'Biomechanics, Sports and Foot orthoses' started by scotfoot, Oct 29, 2016.

  1. scotfoot

    scotfoot Well-Known Member


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    I recently came across a very interesting BSc thesis by a gentleman called Jonathan W .Wallace . The paper is titled
    "Vestibular modulation of the abductor hallucis and abductor digiti minimi muscles in response to changes in head position, visual cues, and cognitive demand " and can be read in full by following the link given below .
    Not much I can really add to the quotations from the paper given below other than to say that if the intrinsic foot muscles are significantly atrophied then their contribution to upright standing balance control will likely be reduced .
    Strengthening the atrophied intrinsics of older people may therefore improve standing balance control .

    Gerry

    from abstract -
    "The purpose of this experiment was to determine if
    intrinsic foot muscles are modulated by vestibular activity and to elucidate any changes in the association between the vestibular stimulation and electromyography (EMG) responses in response to changes in head position, visual cues, and cognitive demand "

    page 7
    "Muscles which are tonically active, but not involved in
    maintaining balance do not exhibit a vestibular myogenic response (Britton et al. 1993;
    Forbes et al. 2015). Therefore, it appears that vestibular-evoked muscle responses only occur in those muscles important to maintaining the upright postural task. "

    page 38
    "The findings of this study demonstrate that the vestibular system is able to
    modulate activity in the abductor hallucis and abductor digiti minimi during standing. "
    " The abductor hallucis and the abductor digiti minimi are likely important
    contributors to upright standing balance control and they are capable of dynamic
    vestibular responses which can be modulated by other sensory feedback as well as by cortical activity. "

    PAPER -----
    VESTIBULAR MODULATION OF THE ABDUCTOR
    HALLUCIS AND THE ABDUCTOR DIGITI MINIMI
    MUSCLES IN RESPONSE TO CHANGES IN HEAD
    POSITION, VISUAL CUES, AND COGNITIVE DEMAND
    by
    JONATHAN W. WALLACE
    A THESIS
    Presented to the Department of Human Physiology
    and the Robert D. Clark Honors College
    in partial fulfillment of the requirements for the degree of
    Bachelor of Science
    June 20
    Link
    VESTIBULAR MODULATION OF THE ABDUCTOR HALLUCIS AND ...

    https://scholarsbank.uoregon.edu/xmlui/handle/1794/20383
    by J Wallace - ‎2016
    7 days ago - The purpose of this experiment was to determine if intrinsic foot musclesare modulated by vestibular activity and to elucidate any changes in the association ...
     
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