Background: Various musculoskeletal disorders influence the abilities of subjects during standing, walking and running. Depends on the type of disorder, stability, gait and energy consumption may be influenced. The aim of this study was to introduce a new parameter to show the total performance of the subjects based on the afore mentioned parameters. Method: Four groups of normal subjects, thos...

Medializing calcaneal osteotomy (MCO) is a flatfoot treatment in stages IIa–IIb. It true that structural correction well known, but stress changes foot tissues have not been sufficiently studied to date. Our objective was evaluate the generated by MCO both hindfoot and forefoot bones some soft support arch. A finite element model employed, simulating situations related development. Results show...

Symptomatic acquired flatfoot is an important orthopaedic problem, due to progressive loss of whole foot function and the increasing problem of patient disability. It is a complex entity, involving the tibialis posterior tendon, ankle joint, hindfoot and midfoot. In most cases the posterior tibial tendon (PTT) is the root cause of acquired flat foot, but there are other contributors and many di...

Evans calcaneal lengthening osteotomy is a powerful surgical technique utilized in the correction of a flatfoot deformity. The known biomechanical complications associated with performing the calcaneal osteotomy alone involve increased lateral column pressures. The present study involves a patient who developed a sub fifth metatarsal ulceration with weightbearing after an Evans calcaneal osteot...

Flatfoot is a common foot deformity, and the collapse of arch structure affects cushioning during walking. A growing number scholars have found that analysis impact force should be combined with both magnitude frequency force. Therefore, aim this study to investigate plantar characteristics flatfoot patients normal people at different load-bearing buffer stage from time domains. Sixteen males s...

Materials and methods Seventeen subjects with flat feet and 17 normal subjects completed the test. Three vertical GRF measures (F1; the first peak force, F2; minimum force; and F3; the second peak force) were extracted before and after a functional fatigue protocol. To check the homogeneity of the velocity among conditions, the average velocity of the anteroposterior center of pressure (COPy) e...

The condition of minimum deviation (MD) by a transparent optically isotropic prism is re-derived, and expressions for the intensity transmittances T(p)(theta) and T(s)(theta) of an uncoated prism of refractive index n and prism angle alpha for incident p- and s-polarized light and their derivatives with respect to the internal angle of refraction theta are obtained. When the MD condition (theta...