УСТОЙЧИВОСТЬ КАРДИОДИНАМИКИ ПРИ МЕРЦАТЕЛЬНОЙ АРИТМИИ В УСЛОВИЯХ РАЗЛИЧНОГО ЧИСЛА ВЫСОКОЧАСТОТНЫХ ПРЕДСЕРДНЫХ ЭКТОПИЧЕСКИХ ИСТОЧНИКОВ
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НИИ ноpмальной физиологии им. П.К. Анохина
Год издания: 2015
Кол-во страниц: 4
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12 volunteers without disorders of the balance function. The study of each test included several stages. Stage without glasses: eyes open, eyes closed. Stage with virtual reality glasses: tracking label to the left at 90 degrees for 10 sec., Tracking label to the right at 90 degrees for 10 sec., Tracking label up at 1.75 m. for 10 s., Tracking label down at 1.75 m. for 10 sec., tilt the room forward on 30 degrees , tilt the room back on 30 degrees, tilt the room to the left on 30 degrees, tilt the room to the right on 30 degrees. Evaluation of the path of the points of the body was carried out using the method of integral estimates [3]. Results. When the Romberg test with open eyes is provided, in both cases there was an impact on the visual analyzer. But in the first case, it was a virtual visual environment while the second - a real room. Compared to the stage of testing with closed eyes the results of these studies showed a smaller deviation integral criterion. Results of the study of neurological functional tests with closed eyes and using a virtual reality in a group of healthy humans have shown that variations in the point corresponding to the center of mass were significantly reduced in comparison with the right and left hands. In addition, the characteristics of the obtained values increased integral criterion in the range of 4-14 seconds. The reaction of the receptor cells of the vestibular apparatus, caused by a change in body position in space or a movement leads to a redistribution of reflex muscle tone. Consequently, the time interval from the start of the sample until the maximum value of the integral criterion can be the time of reflex reactions skeletal muscles that maintain the body balance. Reference. 1. Maintain upright posture in the normal human visual and virtual environment / B.N. Smetanin, G.V. Kozhin // Neurophysiology / Neurophysiology. - 2007. - V. 39, № 6. - S. 476-485. 2. Human postural responses to motion of real and virtual visual environments under different support base conditions / T. Mergner, G. Schweigart, C. Maurer, A. Blumle // Exp Brain Res. - 2005. - T. 167, № 3. - S. 535-556. 3. V.A. Fokin Statistic data simulation at estimation of biological system state, Bulletin of the Tomsk Polytechnic University, V.311 (5), 2007, pp. 120-122. DOI:10.12737/12413 УСТОЙЧИВОСТЬ КАРДИОДИНАМИКИ ПРИ МЕРЦАТЕЛЬНОЙ АРИТМИИ В УСЛОВИЯХ РАЗЛИЧНОГО ЧИСЛА ВЫСОКОЧАСТОТНЫХ ПРЕДСЕРДНЫХ ЭКТОПИЧЕСКИХ ИСТОЧНИКОВ Л.В. Мезенцева*, С.С.Перцов*,** *ФГБНУ «НИИ нормальной физиологии имени П.К. Анохина; **ГБОУ ВПО МГМСУ имени А.И. Евдокимова Минздрава России, Москва, РФ