Since antiquity, human gait has been studied to understand human movement, the kind of gait, in some cases, can cause musculoskeletal disorders or other health problems; in addition, also from antiquity, anthropometry has been important for the design of human items such as workspaces, tools, garments, among others. Nowadays, thanks to the development of optics and electronics, more accurate studies of gait and anthropometry can be developed. This work will describe the most important parameters for gait analysis, anthropometry and the optical systems used.
Nowadays the measurement of the contact area of the foot has become an objective way of classifying feet and to
describe the form of the longitudinal arch of the foot. In this work, the implementation of a digital podoscope that
enables remote sensing for evaluation of the foot is described. The podogram includes an outline of the plantar pressure,
and the contour of the arch. This method of evaluation is relatively simple and inexpensive while maintaining precision.
The recognition system compares the image of the actual foot with that of a reference image. Information from the
comparison can be sent by internet to obtain a remote diagnosis from an expert.
There are several optical methods of experimental stress analysis, including moire, speckle, and photoelasticity. Among these methods, photoelasticity has advantages in that it is less expensive, simpler, and yields complete information relatively quickly. Photoelasticity methods are useful for both the inspection and measurement of the magnitude and direction of stresses in structures, which leads to improved designs and efficient damage detection. In this project we describe the photoelastic technique and show experimental results that may benefit the industry.
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