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Effects of enhanced plantar sensory feedback and foot orthoses on midfoot kinematics

Discussion in 'Biomechanics, Sports and Foot orthoses' started by NewsBot, Mar 1, 2011.

  1. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1

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    The effects of enhanced plantar sensory feedback and foot orthoses on midfoot kinematics and lower leg neuromuscular activation.
    Ritchie C, Paterson K, Bryant AL, Bartold S, Clark RA.
    Gait Posture. 2011 Feb 23. [Epub ahead of print]
     
  2. DaVinci

    DaVinci Well-Known Member

    Was this really "enhanced sensory feedback" or just "something uncomfortable in the arch" that caused the changes?
     
  3. Admin2

    Admin2 Administrator Staff Member

  4. pod29

    pod29 Active Member

    interesting.....

    "no significant differences in muscle activation" but significantly more supinated foot position. If an increase in foot supination has been observed in the absence of any neuromuscular change, then I would have assumed that these biomechanical changes must be occurring as a direct result of the increased supination force applied to foot ( possibly by the nodules?) in the intervention condition. I'm a little confused as to how these findings can be reported as "a sensory" effect if there is no neuromuscular change?

    For example, if you touch a hot plate on your stove, you will by reflex, remove your hand. BUT, if there is no alteration to muscle recruitment while your hand is in contact with the hot surface, you will not be able to move your hand. Unless an external force comes along (your wife) and removes it for you.

    I'll get a copy of the full article and read it, I'm sure there must be more to the story.....

    Cheers
     
  5. pod29

    pod29 Active Member

    Just scanned through the article and it's quite an interesting study. In the limitations section, the authors do acknowledge the fact that they have only used surface EMG and therefore could not investigate recruitment of deeper muscles such as tibialis posterior.

    So possibly these "sensory" effects are due to altered recruitment of tibialis posterior? But based on the data, it could only be speculation.

    Intersting though
     
  6. User7

    User7 Active Member

    "The innersole surface was permeated by multiple small, 4 mm domes of hard plastic, which were covered with thin cotton material and positioned 12 mm equidistantly in the medial midsole of the shoe."

    Unless arch was very low it sounds like domes only stimulated/irritated medial heel, ball and toes.
     
  7. This one is quite high in my mind at the moment for reasons which will become clearer in time.

    Firstly, I'd be interested to know the view of the audience. Can this type of insole, with bobbles to increase plantar sensation, be properly described as a propriceptive insole?

    Hatton, Dixon, Martin and Rome did a not disimilar study:-

    Hatton A L, Dixon J, Martin D, Rome K The effect of textured surfaces on postural stability and lower limb muscle activity Journal of Electromyography and Kinesiology - October 2009 (Vol. 19, Issue 5, Pages 957-964, DOI: 10.1016/j.jelekin.2008.04.012)

    I don't have the full text but I would guess that the Tib post would be one of the 8 dominant lower limb muscles. If anyone does have the full text I'd be eternally in their debt.

    I have a few problems with the research in this area. Not least that as da Vinci pointed out, something uncomfortable in the arch will create the "spikeothotic" effect and much of the research is done for a single acute episode of walking.

    There seems to be more evidence for this effect in people with neurological deficit than in "healthy" subjects. Which raises another interesting question. If these work by increasing areas of peak pressure in people with impaired sensation, where there do they stand from a tissue viability point of view?
     
  8. Here are some more.

    This one

    Wilson M, Rome K, Hodgson D, Ball P. Effect of textured foot orthotics on static and dynamic postural stability in middle-aged females. Gait Posture 2008; 27(1):36-42.

    Showed no change.

    This one

    Palluel E, Nougier V, Olivier I. Do spike insoles enhance postural stability and plantar-surface cutaneous sensitivity in the elderly? Age 2008; 30(1):53-61.

    Found that spikey insoles improved postural sway in the elderly and "balance improvement" in young adults after 5 minutes measured against a "no spike" condition.

    this one

    Kelleher K, Spence W, Solomonidis S, et al. The effect of textured insoles on gait patterns of people with multiple sclerosis. Gait Posture 2010;32(1):67-71.

    Had some somewhat ambivilent results

    There is certainly something there, but the results seem a bit contradictary to me. And I do wonder whether the effect would be sustained or if the body would "correct" for the extra stimulation and revert.
     
  9. Griff

    Griff Moderator

    Check your inbox. Eternal debt. Thankyou please.
     
  10. Eternal Debt granted. Claim, anytime. Thankyouta.

    It seems that in this one

    Hatton A L, Dixon J, Martin D, Rome K The effect of textured surfaces on postural stability and lower limb muscle activity Journal of Electromyography and Kinesiology - October 2009 (Vol. 19, Issue 5, Pages 957-964, DOI: 10.1016/j.jelekin.2008.04.012)

    The Tib post was not one of the 8 muscles tested.
     
  11. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    The Effects of Foot Orthoses and Sensory Facilitation on Lower Limb Electromyography: A Scoping Review
    Kelly A.Robb
    The Foot 6 January 2022, 101904
     
  12. NewsBot

    NewsBot The Admin that posts the news.

    Articles:
    1
    Effect of protruding stickers enhancing plantar sensory feedback on control of the center of force trajectory during gait: A preliminary study
    Daisuke Senzaki et al
    Foot (Edinb). 2023 Mar 21;56:102023
     
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