Abstract

Purpose: Definition influence of parameters of visual disorders on ability of balancing turns out to be an important process during the effective diagnostics. Current diagnostic methods relating mainly to determine the coefficient of BRUTM(Balance Rehabilitation Unit Trade Mark) depend on lots of tests carried out in a disturbed environment created by Virtual Reality Technology. The aim of this study is to determine the effect of the frequency of visual disturbances on stabilographic values in the virtual reality environment. Methods: The studies were carried out involving one research group in Virtual Cave. It was Induced visual disturbances with different frequencies and with the change of frequency during measuring the position of the center of pressure COP in the test. Before each testthe reference testwas performed. All tests were performed with disorders in two different sceneries: closed and open scenery.All measurements were carried out on an immobile Zebris platform which enables determination of feet pressure distribution. From the measured values of the position of the COP were calculated Short Time Fourier Transform (STFT). Results: The results of calculation are shown in the graphs. Analyzing the results determined that a changing in the parameters of frequency disorders in world created using Virtual Reality Technology effect on stabilographic parameters. The intensity of these changes is also affected by applied research scenery. Conclusions: Sets out the conditions to carry out similar studies in order to obtain reliable results. The study is the first step in a project to develop a system for diagnosis and rehabilitation of human movement using Virtual Reality Technology.

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