UDC

[612.886+85]

Authors

Danilova Raisa Ignatyevna
Integrated Safety Institute, Northern (Arctic) Federal University named after M.V. Lomonosov (Arkhangelsk, Russia)
e-mail: rid65@inbox.ru
Sobolev Sergey Victorovich
Institute of Medical and Biological Research, Northern (Arctic) Federal University named after M.V. Lomonosov, (Arkhangelsk, Russia)
e-mail: ramires765@yandex.ru

Abstract

The evolution of a child with a variety of abnormalities always has its own aspects. At impairment of hearing in children different features of age dynamics of physical development and motion activity are presented. The equilibrium control, the balance at a normal standing position is an active, dynamic process, and many body systems are involved in it. First of all it’s proprioceptive, visual, vestibular sensory systems. The imbalance of the body occurs as a deviation from the vertical position at rest. The reasons can be the damage of the vestibular system, labyrinth, proprioceptors, tentorium and structures of the central nervous system. Vertical stability of hearing impaired children is underinvestigated. To assess the level of stability the method of stabilometry is used. For the diagnosis of various pathologies of sensory systems there are some special functional tests allowing under appropriate provocation discover more distinct changes. By the method of stabilometry the reaction of mechanisms for maintaining vertical stability in children with hearing impairment to reduce proprioceptive sensitivity was studied. Proprioceptive sensory decrement was carried out with the help of a special foam pad located on the surface of a stabilometric platform. Proprioceptive sensory decrement leads to a decrease of vertical stability. The data indicate a tendency to decrease the vertical stability in children with hearing impairment in comparison with healthy peers. It is probably due to the disturbance of vestibular apparatus of hearing impaired children. Compensation of disbalance of hearing impaired children occurs mainly via the proprioceptive system.

Keywords

hearing disorder in children, children's hearing loss, vertical stability of children, maintaining the stability of the body, proprioception, stabilometric method

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