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Rigid Or Semi-rigid V/s Soft Orthotics


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#1 bonechina

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Posted 05 June 2008 - 09:49 PM

I have 2 different types of orthotics for treating shin splints made by two different podiatrists – 1) semi rigid ones made of polypropylene and 2) a relatively softer pair made mostly of EVA and other composites. Both have very unique feel to them. Let me explain….

The semi rigid ones provide significant support but are intrusive……I mean, they are always "there" and one can "feel" them even after running for some time, my feet havent "internalised" them.

The softer ones are extremely comfortable, they almost become a seamless part of my lower anatomy (shoe, feet, orthotics combination) and after a few minutes and I dont even realise they are there. However they don’t feel as “reassuring” as the rigid ones for support. I would also assume that the EVA would not last as long as the polypropylene ones. The podiatrist who made the EVA orthotics said, the principle behind making them softer is to impart control without increasing impact forces.

Both types are helping me with my shin splints.

Which type of orthotics do you use. Also, would like to ask podiatrists on this forum their expert opinion on which type they normally prescribe to treat shin splints.

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#2 Duffman

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Posted 06 June 2008 - 12:09 AM

I have a pair of modified Formthotics (prefabricated EVA) that I use for running and rigid 4mm Polypropylene orthotics for everything else.
The style of device and modifications prescribed depends on the type and extent of the deformity and any compensations present.
As a student, we are taught to select the thickness and type of material based on:
- Pronatory force / supination resistance
- Body weight
- Age
- Activity
- Available materials

So, as a general rule the type of device used to treat shin splints is decided on a case by case basis.