Foot Orthoses

Adjunct Associate Professor, Department of Applied Biomechanics, California School of Podiatric Medicine at Samuel Merritt College, Oakland, California.
Foot & Ankle Specialist 09/2012; 5(5):334-43. DOI: 10.1177/1938640012458900
Source: PubMed
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Available from: Kevin Arthur Kirby, Apr 22, 2014
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    ABSTRACT: With the rapid development of CAD/CAM technology and information technology, it is becoming possible to satisfy the quality, fit and comfort requirements of footwear design and manufacturing. In the footwear industry, although there are availability of design and manufacture technologies to fulfill the desired requirements, the current methods are very expensive. Cheap and accurate scanners are needed at the retail shop to acquire 3D foot shape information. This paper proposes a prediction method to model foot shapes through scaling a standard foot by using limited parameters. The accuracy of different number of parameters have been evaluated. Given that commercial expensive scanner accuracy range from 0.5 to 1 mm, in order to predict 3D foot shape to an accuracy of around 0.75 mm, foot outline, foot profile, two foot sections and standard foot model were required. The mean modeling errors were 0.76 mm and 0.75 mm of the right foot and left foot respectively. Results indicate that if more sections are used the modeling error decreases but this will increase the cost of the scanner and the computational complexity. This method provides a cost effective method to substitute expensive 3D foot scanners that usually use laser-based technology. Relevance to industry : This method provides the core algorithm for the development of low cost 3D foot scanners for footwear mass-customization. CCD cameras can be used to capture foot profile and outline, while fixed line laser can be used to obtain two key sections. This method reduces the need for expensive linear gears and optical systems.
    Full-text · Article · Nov 2014 · International Journal of Industrial Ergonomics
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    ABSTRACT: Foot orthoses are commonly prescribed to manage various conditions related to foot biomechanical dysfunction, with an empirical basis for their use in numerous lower limb injuries. The kinematic coupling between foot segments and the lower limb suggests that foot orthoses may also impact more proximal structure and could thus be successfully used to treat lower limb injuries.
    No preview · Article · Jan 2015 · Louvain médical