Exercise causes such reflex responses that enhance the excitability of the central nervous system, its reactivity. It should be borne in mind that the nature and strength of the response
(degree of muscle contraction, quick reflexes and others.) are related to physiological mobility of the nervous processes. AN Krestovnikov indicates that the change in excitability of the central nervous system under the action of physical exercise is one of the essential points for the full formation of conditioned reflexes and restore faded conditioned reflex connections.
In this regard, in the assessment of the action of physical exercise on the patient should be taken into consideration and their influence disinhibited, which in turn against moderate excitation functions creates conditions that facilitate the conduction of nerve impulses.
In traumatic disorders that are attached to the stimulation of blood and lymph circulation and increased resorption of inflammatory products in the area of the pathological focus, thereby reducing compression and creates more favorable conditions for the active influence of exercise on recovery of movement.
Implementation of the recovery process in the motor or autonomic disorders are closely related to the plasticity of the cerebral cortex. Exercise enhance the functional restructuring, providing a stimulating effect on the efferent and afferent to the system.
To muscle receptors pulses followed by somatic and autonomic pathways in the central nervous system integrates information afferent systems. This association in its highest expression and perfection, as indicated by KM Bykov, occurs in the cerebral cortex.
The restoration of the disturbed functions, in particular, cause irreversible damage to organs and tissues, great attention should be compensatory mechanisms.
The value of the plasticity of the nervous system in the restructuring of functions, cerebral cortex
Years of research Asratyan and its employees dedicated to the problem of compensation functions, led the author to
the conclusion that the cerebral cortex I
out primary regulator of the adaptive changes that occur in the affected organism.
During the training exercise is carried out well-worn neural pathways, both afferent and efferent, and improved synaptic transmission.
One of the disciples of Pavlov Anokhin showed that the afferent system is of paramount importance in the process of the exercise. He and his colleagues made the vagus nerve anastomosis with peripheral segment of one of the mixed nerves of the brachial plexus and the dogs got "re-training" center.
The centers of the vagus nerve began to perform the function of the motor. There was not just a short-term functional changes in the nervous centers, and their restructuring through the establishment of new nerve connections to the body, whose nerves have been crossed.
Following this Asratyan shown that this restructuring may be only at the impact
s of the cerebral cortex, as when the last animal is no adjustment does not reach
Can not. This once again confirms the essential plasticity of the nervous system in the restructuring of functions.
The study of this issue also showed that functional systems of the brain are deprived of their natural flow of impulses from peripheral receptors undergo dramatic morphological changes its nerve, vascular and other structures, especially pronounced in the early stages of ontogeny.
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