EUROMEDICA  Hanover 6-7  Juni 2008	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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Introduction. The process of approaching a specific work or sports activities at the beginning of each work, with a required stereotype movements (by the nature of the movement, shape, amplitude, speed, strength and rhythm) is a process of adjustment.. This requires a certain amount of time, during which a new level of functioning of autonomic systems is established, enabling the muscle activity. Maximum efficiency and optimum effect of the work achieved only gradually in the process of adjustment. It is therefore of interest to study this process assessment of a functional state (FS) of the man in this period. Currently, it is believed that there is a large set of physiological reactions of the body, which reflects changes in the level of the functional state. It is therefore proposed to evaluate the FC on a set of interrelated physiological reactions, and changes in the FS seen as replacing one set of reactions of others. Sharing this approach to the diagnosis of PS, NB Maslov et al. (2003) considers that in practical-based view in the study of human FF in the first place should be paid attention to the central nervous system (CNS), as well as in the hierarchical structure of functional systems, it occupies a special, important place. Considering this aim in experiments conducted in natural conditions, we widely used psychophysiological techniques to measure parameters of the FS CNS.

Methods. Along with other psychophysiological methods of FS assessment used there was a critical frequency of light flashing (CFLF), presented due to inertia of the optic analyzer. CFLF method is used in physiology of sport and labor, since this value characterizes the general condition of the organism at different levels of general physical loading. However, changes in the value CFLF in response to physical loads are small and do not exceed 1-3 Hz. At the same time, experimental studies have shown that the transition from visible light flashing to their merger is blurred and presents an indefinite zone, on average, equal to 1 Hz, hence the low accuracy of the CFLF method. Recently psychophysiological methods have been proposed that enable determining other temporal parameters that characterize the inertia of view: the time of perception and the time of recovery

Results. In the laboratory for Study of Human Kinetics at the Department of Physical Culture, Sport and Tourism Mari State University were tested ways of assessing time of the body adjustment, based on the definition of perception time, which characterizes the speed of agitation processes in the CNS. To do this a threshold interim pulse interval was periodically determined in veloergometry, at which the two pair impulses are merged into one, and processed into a chart of dynamics of the threshold interim pulse interval with the coordinates «interim pulse threshold value vs. the time of testing,» with a simultaneous measurement of heart rate variability ((HRV). The adjustment time was determined on the time of output of the chart of threshold interim pulse interval on the «plateau». This testifies that the CNS is found in a quasi stationary mode, i.e. the processes of regulation of autonomic functions in all organs of the body systems are completed and the entire organism is introduced to a state of an optimal efficiency.

Conclusions. The obtained results of laboratory test data in regard to the time of adjustment for the organisms of sportsmen of cyclic sports allows conducting more focused preparations for upcoming contests, prevent injuries and prolong intensive training in physical culture and sports.