EUROMEDICA  Hanover 29-30  Mai 2006	Advanced methods of diagnosis, treatment and prophylactics
	European Academy of Natural Sciences, Hanover European Scientific Society, Hanover Russian Academy of Natural Sciences, Moscow

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The significance of the functional condition (FC) and the properties of the central nervous system (CNS) for organization of any form of activity is empirically known long ago. Basing on the CNS role the researches (Maslov N.B. and coauthors, 2003) presume that for practical assessment of FC a priority attention should be paid to the CNS. To estimate the FC of the CNS psychophysical methods are widely used (J.Chasset, 1981) enabling to study relationship between the man’s activity and his FC.

Efficiency of the function of the visual analyzer (VA) depends on a number of factors including also the function level of cortical section. Therefore as the criteria characterizing FC CNS there is the FC of VA (Zagryadsky V.P. and V.P. and coauthors 1976). Thus, according to the data (Efremov V.S., 1988) VA is less dependable on deviations in the parameters connected with the emotional strain, so the methods of estimation of the functional condition of the visual analyzers are used for the analysis of FC of CNS at different kinds of activities.

One of the VA temporal parameters is the time of perception (TP) - that is, the time between the moment of the impact on the retina and the moment of the occurrence of the corresponding visual perception. To estimate TP of the VA is possible with the method of paired pulse measuring the threshold duration of the pulse separation, which is responsible for the perception of merging two impulses into one (Patent 2231293 RF).

Dynamics of TP of VA determining a change of speed of nervous processes during the individual study in the man’s adaptation to physical strain enables to evaluate the condition of CNS. In the veloergometry study of the strain, equal to 75% of the proper oxygen consumption participated the students of pedagogical university that do not go in for physical training. At certain training stage TP sharply decreases, which signalizes the state of strain in CNS and the necessity to stop testing though the dynamics of frequency of heart contractions (FHC) account for continuing the test.

A detailed medical examination showed that these respondents have some disorders in the function of the heart. They were treated according to an individual 4-month plan of physical training (one regular semester). After each month of the training a control examination was carried on. By the end of the second month some improvement was stated, by the end of the semester the condition approached the norm.

The experimental studies enable to recommend the method of estimating the TP VA to reveal a concealed heart defect and to monitor the efficiency of rehabilitation measures