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Prescription Foot Orthotic Laboratory Association
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PFOLA Message Board
- Welcome to PFOLA's message board. Please feel free to discuss issues related to orthotics, pedorthics, and biomechanics with your professional colleagues.
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Subject Effects on Orthotic Rigidity
Date Thu Aug 2 2001 15:35
Author Phillip Hartshorne (philhartshorne@bigpond.com)
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Chris, Yes, the addition I was referring to runs through the medial longitudinal arch and I agree with your observations that rigidity is increased with postings, higher heel cups etc. Unfortunately no data on hand to back up statements though. I know there has been some study done on the effect of vacuum pressed orthoses losing shape over time, but what is the case when compared to milled (CAD-CAM) orthoses in terms of rigidity at the same thickness? Does a milled orthosis have the same rigidity as a new vacuum pressed orthosis? Basically how much of a factor does manufacture process play in the rigidity of a device and has anyone published any material? Cheers Phil |
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