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Mechanical Analysis of Foot Plantar Fascia

Discussion in 'Biomechanics, Sports and Foot orthoses' started by NewsBot, Feb 23, 2013.

  1. NewsBot

    NewsBot The Admin that posts the news.


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    Mechanical Analysis of Foot Plantar Fascia During Normal Walking Condition
    Y. D. Gu, Z. Y. Li, W. W. Shen, J. B. Ma
    World Congress on Medical Physics and Biomedical Engineering May 26-31, 2012, Beijing, China; IFMBE Proceedings Volume 39, 2013, pp 242-244
  2. Admin2

    Admin2 Administrator Staff Member

  3. Craig Payne

    Craig Payne Moderator

  4. Why does everything have to do with minimalist barefoot running.

    This is an important thing for people to understand, perhaps we could have 2 threads

    1 a mechanical thread 're plantar fascia biomechanics , another which can selfdisruct 're false claims etc.

    I do believe 1Will have some great value
  5. Can someone send me a pdf copy please.

    1st time I have seen the value of y times at the 2nd peak of me mechanical strain of the plantar fascia.

    I have a good collection of papers I can post references on Monday from work.

    Most don't release the is 2 peaks in strain, also helps explain why gastro/sol complex stretching is important
  6. efuller

    efuller MVP

    I'd love a copy of the paper if anyone has it. The wording seems a bit odd. You'd think there would be more than 5 times tension in fascia at heel strike vs. push off. At heel strike, with the forefoot in the air, the only thing loading the fascia would be the ant. tibial muscle. At forefoot loading, I would expect a peak. I wonder if that's what they meant.

  7. Measurement of plantar fascial tension in a cadaver simulator, versus computer modelling, has already been done, nine years ago.

    Erdimir A, Hamel AJ, Fauth AR, Piazza SJ, Sharkey NA: Dynamic loading of the plantar aponeurosis in walking. JBJS, 86A:546-552, 2004.
  8. Bruce Williams

    Bruce Williams Well-Known Member

    Very nice Kevin. I copied it from the screen. If and when I use it I will do my damndest to remember to give you proper credit.
  9. JasonR

    JasonR Member

    Hi All
    I have an interest in plantar fasciopathy and am considering undertaking some study in the near future. Has anyone looked at it from degenerative enthesopathy view- managing it as a 'failed healing response' with a graded loading programme? There are some thoughts about the role of compression in sick tendons- are there any indications that there might be subgroups where compression eg some form of 'cam' effect from the calc, is relevant? I.e- is it always about tension?
    To that end, I might expect that there are different mechanical subgroups within PF, that respond to different interventions. I expect some will hate loading, but clinically, others do well with it? Leads me to another question, and that is the (natural history) expectation that the condition 'burns out' within 12 months. Any good studies which actually measure physical outcomes in recovered subjects?
  10. The original paper is coming your way. You should reference Erdemir et al, not me, regarding this slide.:drinks

  11. NewsBot

    NewsBot The Admin that posts the news.

    Anatomy and Biomechanical Properties of the Plantar Aponeurosis: A Cadaveric Study
    Da-wei Chen, Bing Li, Ashwin Aubeeluck, Yun-feng Yang, Yi-gang Huang, Jia-qian Zhou, Guang-rong Yu
    PLoS ONE 9(1): e84347. doi:10.1371/journal.pone.0084347
  12. toomoon

    toomoon Well-Known Member

    can we have the discussion on whether in fact it is an "aponeurosis' or a 'fascia"?
  13. Craig Payne

    Craig Payne Moderator

    Is there really a difference or is it just semantics?

    I just happen to have Myers (Anatomy Trains) & Schiepi et al (Fascia:The tension network of the human body) on my desk ... neither of them shed much light on the difference.
  14. toomoon

    toomoon Well-Known Member

    The differentiation as I understand it Craig is that an aponeurosis is defined by the longitudinal alignment of the type 1 collagen fibres, whereas a fascia has multilayered and multidirectional fibre orientation.
    "the plantar fascia has received more attention
    from the biomechanical engineers and clinicians than from
    anatomists. This is evident also analyzing the anatomical
    terminology. In the Nomina Anatomica (1998) only the term
    plantar aponeurosis is used to indicate this structure, but it
    is inserted in the chapter ‘fasciae’. In the various anatomical
    textbooks, the terms ‘plantar fascia’ and ‘plantar aponeurosis’
    are used interchangeably. In fact, the term ‘aponeurosis’
    is generally used to indicate a tissue with a unidirectional
    arrangement of collagen fibers, whereas a fascia is a structure
    with a multidirectional arrangement of the fibers
    (Langevin & Huijing, 2009). No published works have discussed
    which term is more appropriate for this tissue and
    it is not clear whether the PF contains only longitudinal
    or also multidirectional fibers. In our microscopic study,
    different stains were used to reveal the arrangement and
    composition of the plantar fascia: the collagen fibers were
    found arranged mainly in a proximal-to-distal longitudinal direction, but there were also various fibers lying in vertical,
    transverse and oblique directions. This multilayer configuration
    of the collagen fibers is a typical feature of fasciae
    rather than aponeurosis, so we suggest that the term ‘plantar
    fascia’ would be a more appropriate name for this tissue."
    paper attached for those interested.

    Attached Files:

  15. Sarrafian calls it the plantar aponeurosis and divides it into the central component, medial component and lateral component.

    What's the better word? I think the three components of the plantar aponeurosis (Sarrafian's term) are the most accurate way of discussing this structure.

    Here is the photo I use in my lecture on the 10 Functions of the Plantar Fascia.
  16. toomoon

    toomoon Well-Known Member

    the lateral component is completely absent in at least 12% of the population..
  17. Rob Kidd

    Rob Kidd Well-Known Member

    When the going gets tough, one goes back to basics. The deep fascial tube invests the whole body, though certainly with modifications in places eg Scarpa's Fascia and its relationship to the abdominal fascia as a whole. An aponeurosis, on the other hand, is generally defined something like this: "a broad band of fibrous tissue, other than a tendon, that joins muscle to bone". Thus the iliotibial tract is an aponeurosis - joining (most of) gluteus maximus and tensor fascia lata to the lateral tibia; it is thus an augmentation of the fascia lata, the deep fascial tube of the thigh. Palmaris, in the flexor/pronator compartment of the forearm, inserts into the palmar fascia. And in the foot? Well, just as everywhere else, the whole foot is sheathed with deep fascia, which plantarly may be called the plantar fascia. However the plantar aponeurosis is correctly a subset of this - highly modified for specialist function which we all know about. But if an aponeurosis has a muscular insertion - what about this example? It used to - the plantaris muscle inserts into the plantar aponeurosis in many species, including some primitive primates - essentially those species that keep there calcaneus off the ground, like my dog.

    I accept, these days, its all in a name, but correctly, that is the proper nomenclature. Rob
  18. NewsBot

    NewsBot The Admin that posts the news.

    Changes in Length of the Plantar Aponeurosis during the Stance Phase of Gait an in vivo Dynamic Fluoroscopic Study
    G. Fessel, H.A.C. Jacob, Ch. Wyss, Th. Mittlmeier, M. Müller-Gerbl, A. Büttner
    Annals of Anatomy - Anatomischer Anzeiger; Available online 29 July 2014
  19. Bruce Williams

    Bruce Williams Well-Known Member

    Anyone have access to a copy of this paper for further examination?
    if so please email me at bew@weil4feet.com.
  20. NewsBot

    NewsBot The Admin that posts the news.

    Biomechanical and mechanical behavior of the plantar fascia in macro and micro structures
    Junchao Guo et al
    Journal of Biomechanics; 8 June 2018
  21. NewsBot

    NewsBot The Admin that posts the news.

    Regional differences in the mechanical properties of the plantar aponeurosis
    Vara Isvilanonda et al
    Journal of Biomechanics; Volume 151, April 2023, 111531
  22. Rob Kidd

    Rob Kidd Well-Known Member

    Interestingly I have just marked a Masters Thesis from a university that you have all heard of, on among other things, the plantar fascia. I expect it to be in the press by the end of the year.

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