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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2016; 62(1): 62-67

STABILOMETRIC VALUES OF HUMANS UNDER THE CONDITIONS OF FORWARD AND BACKWARD BENT POSITIONS

V.V. Garkavenko1, E.V. Kolosova1, V.D. Maksimova2

  1. O.O.Bogomoletz Institute of Physiology NAS of Ukraine, Kyiv;
  2. National University of Physical Education and Sports of Ukraine, Kyiv
DOI: https://doi.org/10.15407/fz62.01.062


Abstract

Using stabilometry study the center of pressure (COP) displacement over the horizontal surface and power spectrum characteristics of postural sway in the sagittal and frontal planes (Y and X- oscillations, respectively) during an upright stance (US) and under the conditions of body bents forward and backward (BF and BB, respectively) were investigated in a group of 15 volunteers. The tests were performed under the conditions of opened and closed eyes. It was demonstrated that the power spectrum of sway depended on posture, it was greater under the conditions of body bents than during the upright stance. In all three positions blocking of optical input resulted in an increase in power spectrum as well of Y- and X-oscillations in a number of frequency bands of body sway. A significant dependence on the visual control for the mean value of COP under the conditions of bents backward was also found. Data on changes in the lateral oscillations under the conditions of body bents in the sagittal plane showed the essential role of ankle proprioceptors in the genesis of the lateral oscillations at keeping balance during standing. The comparative analysis of power spectrum characteristics of postural sway in the sagittal and frontal planes under the conditions of opened and closed eyes indicated a significant interaction between proprioceptive and visual afferentation at positions of body bents relative to upright stance.

Keywords: stabilometry; power spectrum; upright stance; forward and backward body bent positions; anteroposterioroscillations; medio-lateral oscillations.

Full text: (PDF, in Ukrainian)

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