Orthotics, Wiki

Robertisaacs · Dec 4, 2008

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I was playing at being a lay person, looking for information on orthotics. Had a look in wiki, the font of all knowledge.

OMFG!!!

Proprioceptive orthotics

While most conventional orthotics relies on passively supporting and immobilizing the feet, proprioceptive orthotics is a new type of less costly orthotics that relies on the proprioceptive system. The proprioceptive system is the brain processing mechanical stresses received from nerve endings in the skin, joints, ligaments, tendons and muscles and providing motor output to control (tense and relax) muscles to maintain body equilibrium and intended motion. A proprioceptive approach to orthotics is particularly suited for people who have Morton’s Foot Syndrome or an elevated first metatarsal (usually, but not necessarily associated with MFS). Morton’s Foot Syndrome is characterized by a deeper cut web space between the first and second toe and/or a longer appearing second (Morton’s) toe. Morton’s Foot Syndrome is also defined to include a hyper mobile first metatarsal and is often associated with calluses underneath the 2nd and 3rd metatarsals ( Morton). An elevated first metatarsal is characterized by the first metatarsal not being weight bearing when the weight bearing foot is positioned in its subtalar neutral position (where the heel bone is perpendicular to the floor). This can be observed by mapping the pressures underneath the sole of the foot. It is thought (Rothbart) that this condition is associated with retention in talar torsion (a structural variation) as described by (Sewell) who documented that a talar head rotation in the frontal plane may vary by as much as 20 degrees from person to person. The result is that in “normal subjects” the first metatarsal does not become fully weight bearing until 88% of the contact stance phase of gait is complete (Cornwall, McPoil), causing the foot to substantially hyperpronate through mid-stance and most of the propulsion cycle. The theory behind proprioceptive orthotics revolves around the natural response of the foot and body in response to how the ground is felt by the feet. Travell and Simons stated that Morton’s Foot Syndrome causes an unstable foot where the main pressures are focused on the heel and at the area at the base of the second toe causing walking (presumably because the associated elevated first metatarsal) to be akin to walking in ice skates. This instability by all appearances causes one of two different proprioceptive responses. The foot is either freely released to roll in (hyperpronators = inside outsole shoe wear), or this action is partially or fully resisted through bracing the muscles to prevent it by forced (conscious or subconscious) supination (outside outsole wear). Since supination is most often a proprioceptive response (compensatory response) to hyperpronation, hence supinators are typically hyperpronators in disguise. :wackoroprioceptive insoles are designed to alter how the foot feels the ground, particularly the timing of the first metatarsal ground contact. When ground contact is felt underneath the first metatarsal, muscles are naturally activated to push against the ground forces. When the ground is purposefully elevated underneath the first metatarsal, this muscle response is thought to happen sooner hence bringing the first metatarsal to bear more weight earlier in the contact gait cycle and stabilizing the forefoot. This controls hyperpronation, and, as a result, natural proprioception reduces the subconscious urge to compensate by supinating the foot. Proprioceptive orthotics may therefore be applied to eliminate or reduce both foot and general postural musculoskeletal pain in both hyperpronators and supinators. igsroprioceptive orthotics may be combined with passive arch support in cases of severe hyper mobility, and temporarily while healing Plantar Fasciitis injury. Because proprioceptive orthotics only requires small dimensions to influence the neuromuscular system, they are thin, flexible and virtually unnoticeable in footwear. The foot remains free to move naturally and comfortably.
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A completely different theoretical model and orthotic design has been advocated by Edward Glaser, DPM since 1992. In this model, the goal is to restore optimal arch height and function, since it is loss of arch height that is the most common factor behind foot pain and deformity. In order to capture the optimal amount of arch for any given foot, casting is done against the ground, sequentially and semi-weight bearing in foam. The orthotic is then made to match the exact shape of the foot with the rigidity calibrated to be able to hold the arch up with activity and yet flex slightly for comfort and functional pronation. It is based on the MASS (Maximum Arch Subtalar Supination) position model of correction.
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Optimal again. If i hear one more time that a certain position is optimal i swear they'll be trouble!

Can anything be done about this? It seems the lunatics have taken over the asylum!

Regards
Robert

admin · Dec 4, 2008

I will embed it:

Orthotics

Medical specialty that focuses on the building and designing of artificial legs

For the branch of medicine dealing with artificial body parts, see Prosthetics. For the specialist in orthotic devices, see Orthotist.

Ankle-foot orthosis (AFO)

Orthotics (Greek: Ορθός, romanized: ortho, lit. 'to straighten, to align') is a medical specialty that focuses on the design and application of orthoses, sometimes known as braces or calipers.^[1] An orthosis is "an externally applied device used to influence the structural and functional characteristics of the neuromuscular and skeletal systems."^[2] Orthotists are professionals who specialize in designing these braces.

^ The dictionary definition of calipers at Wiktionary

^ "Prosthetics and orthotics". iso.org. International Organization for Standardization. Retrieved 11 August 2021.

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carolethecatlover · Sep 27, 2011

I have a Wiki problem. The DYSHIDROSIS article is totally inaccurate and out of date. It gets quoted everywhere, on facebook, on other forums and back to me by patients and sufferers.
I have tried to correct it many, many times and have got into 'discussion' arguements with the writer 'Mu-Mind' who is a software engineer. He has locked the content now due to 'vandalization' by me. I really just want people to know this curable.

Boots n all · Sep 27, 2011

You think thats bad read "Rocker sole" its more like a commercial gone wrong

Orthotics, Wiki

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Orthotics, Wiki

Robertisaacs MVP

admin Administrator Staff Member

Orthotics

carolethecatlover Active Member

Boots n all Well-Known Member

Foot orthotics and tibial strain

Orthotics and Biomechanics guide

Deep learning algorithms to design foot orthotics

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