Accelerometric testing of selected points of the human locomotor system
Journal Title: Rehabilitacja Medyczna - Year 2010, Vol 14, Issue 3
Abstract
Aim: The purpose of the paper was to determine changes in acceleration of the body parts while walking.Material and methods: A tri-axial accelerometric sensor which was fastened to the foot, shank, knee, thigh, hip, L3 and L7 spinous process or the head of the person who took part in the test was used. Eleven healthy adults aged 18-24 participated in the test. Test participants were asked to walk 20 meters at their chosen, normal speed. The results were recorded on a computer at the time of the test.Results: Tests results show that the higher the body part, the lower the amplitude of accelerations. The highest acceleration values for almost all test participants were observed at the heel level. Acceleration values gradually decreased in higher parts, though it must be noted that the results varied with regard to individual participants. As it was supposed prior to the test, in half of the participants the lowest values were the ones measured at the head level, while the other half showed lowest values in C7 spinous process. It turned out that the highest absorption rate of transient impulsive forces was in the ankle, which is considered to be the consequence of a special anatomical structure and the eversion mechanism during walking. The tests also confirmed the lack of symmetry between the right and the left side of the body.
Authors and Affiliations
Elżbieta Szczygieł, Sylwia Król, Paweł Grzebień, Tomasz Korbiel, Tadeusz Mazur
Keywords
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