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Plantar fascia and spinal reflex

Discussion in 'Biomechanics, Sports and Foot orthoses' started by scotfoot, Nov 16, 2018.

  1. scotfoot

    scotfoot Well-Known Member


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    Is there such a thing as a spinal reflex connected to strain within the plantar fascia ?
    I believe there might be with sudden loading of the fascia producing increased activity in the plantar intrinsics .
     
  2. scotfoot

    scotfoot Well-Known Member

    So an experimental set up might involve an apparatus similar to that shown in fig 2 in the paper listed below(1) .

    The toes are raised and the foot and fascia are loaded via weight applied downwards on the knee in a seated individual (see figure 1 in paper 2 ,below ) .

    A percussion hammer or the like is used to deliver a below to a particular area of the fascia from below and the reaction patterns of the intrinsics are measured.


    Paper 1
    Yawar, Ali, et al. "Contribution of the transverse arch to foot stiffness in humans." arXiv preprint arXiv:1706.04610 (2017).
    https://arxiv.org/pdf/1706.04610.pdf

    Paper 2
    Intrinsic foot muscles have the capacity to control deformation of the ...


    rsif.royalsocietypublishing.org/content/11/93/20131188
     
  3. scotfoot

    scotfoot Well-Known Member

    So if strain within specific areas of the plantar fascia does produce , via spinal reflex , specific patterns of activation within the intrinsic foot muscles , so what ?

    Well , orthotics may work in part not merely by supporting the foot but by changing , to advantage , strain within the plantar fascia and hence intrinsic activation patterns .

    Might be worth looking at .

    Related to the above is this thread :
    The plantar fascia as a strain gauge
     
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