УСТОЙЧИВОСТЬ КАРДИОДИНАМИКИ ПРИ МЕРЦАТЕЛЬНОЙ АРИТМИИ В УСЛОВИЯХ РАЗЛИЧНОГО ЧИСЛА ВЫСОКОЧАСТОТНЫХ ПРЕДСЕРДНЫХ ЭКТОПИЧЕСКИХ ИСТОЧНИКОВ

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