Abstract. Purpose: study daily dynamic of indicators of girl-students' blood micro-circulation. Material: 340 girls of 17-19 years old age were examined. The method of laser Doppler's flow metering was used. Results: The state of tissue blood circulation was determined. Character of micro-circulation's changes under influence of daily bio-rhythms was detected. In first half of day tension of mechanisms of micro-circulation's regulation takes place. Partially it reduces by 4 p.m. at the account of strengthening of metabolic components of vasomotor rhythm. In evening period there is observed compensatory increasing of breathing and pulse modulations. It is connected with weakening of sympathetic and strengthening of parasympathetic impacts on tissue blood circulation. Also we registered changes in correlation of rhythmic components of tissue blood circulation's oscillations at the accounts of weakening of vasomotor rhythm. It witnesses about tension of regulatory mechanisms. Conclusions: it is recommended to use the received data as normative indicators of laser Doppler's flow metering when studying pathological processes.

The article is devoted to the issues of using information-communication technologies for monitoring the physical health of students, which will enable them to be more successful, adaptable to the environment and current social changes in the future. The study included determining the level of somatic health by the method of G. L. Apanasenko. The rapid assessment had a fairly wide range of individual indicators of overall health, as well as cardiovascular and respiratory system functionality. The analysis of the conducted studies clearly indicates the need for constant monitoring of the indicators of physical development and somatic health of students throughout the study period. In order to objectively evaluate somatic health and to track it in dynamics, the students proposed the information and communication technology "Health Portfolio" developed by the authors. The implementation of such monitoring model and information program provides an automated assessment of the functionality of the human body and is accurate, informative and physiologically sound. Due to the increase in the amount of all kinds of information, as a pledge of future professional success of modern students, there is a problem of motivation of healthy lifestyle and involvement of students in independent motor activity.

The article is devoted to the problem of studying blood microcirculation in healthy individuals at different stages of ontogenesis. The aim of the study was to investigate the peculiarities of the skin blood flow in students aged 17-21. Materials and ways of the research. In order to study the functional state of blood microcirculation the method of laser Doppler flowmetry (LDF) was used. Results. Determination of the age dynamics of the tissue blood flow in subjects aged 17-21 years showed that the parameter of microcirculation in the subjects increased from minimal values at 17 years to maximal values at 21 years. In the female subjects, the value of the microcirculation parameter was higher at 17 years than in the male subjects, while the maximum perfusion value for girls was at 19 years and at 20 years in the male subjects. Assessment of the regulatory devices showed that the amplitude value of low-frequency oscillations in females fell at the age of 19 years and in males at 20 years. The maximal amplitude index of vasomotor oscillations was registered at the age of 19 years both for boys and girls. The amplitude of vasomotor oscillations in the high-frequency range varied in both girls and boys. Three types of LDF-grams were identified among the young adolescents: aperiodic LDF-grams, which correspond to normoemic type of microcirculation, monotonous low amplitude LDF-grams, which correspond to hypooemic type of microcirculation, sinusoidal LDF-grams, which correspond to hyperemic type of microcirculation. Conclusions. As many studies have shown, the heterochronicity of values of blood microcirculation indices is preserved in male and female subjects: in one age section the indices are higher in females, in the other one – in adolescents. This fact reflects the general biological regularity of different maturation of male and female organisms

This research deals with the study of blood microcirculation peculiarities.Materials and methods. 72 students of Bogdan Khmelnytsky Melitopol State Pedagogical University, aged 18–19, were examined. The experimental research consisted of the study of blood microcirculation functional state by means of Laser Doppler flowmetry (LDF) method. It helped to evaluate the state of tissue blood-circulation and to detect individual-typological peculiarities of blood microcirculation under the influence of physical activity (before and after exercise).Results. Three types of blood microcirculation were identified by using LDF-metry. The normoemic type of blood microcirculation, characterized by the superposition of oscillatory rhythms and reflected the balance of the mechanisms of regulation of microcirculation. The hyperemic type, characterized by a «monotonous» LDF-gram with a high parameter of microcirculation, which reflects the relative predominance of metabolic mechanisms in the regulation of microcirculation. The hypoemic type, characterized by a «monotonous» LDF-gram with a low parameter of the microcirculation parameter, which reflects the decrease of vasomotor mechanisms in the regulation of microcirculation. According to the LDF-metric data, the examined students under intensive physical activity have a significant increase in microcirculatory status: by 6 % of the microcirculation parameter, by 28 % of the mean square deviation and by 45 % of the initial value of the coefficient of variation.Conclusions. This dynamics of microcirculation shows that under the influence of physical exertion, a person creates significant functional reserves for the redistribution of blood flow and for more perfect intraorgan capillary blood flow. It was found, that in the process of physical activity, morpho-functional rearrangements of the human cardiovascular system occur. This reaction is formed by several components of blood microcirculation: blood flow in the transport direction, regulating blood supply in accordance with the needs of tissues and the exchange component of the histochemical barrier

<p>The experimental research included the study of the functional state of blood microcirculation by means of laser Doppler flowmetry (LDF). Allowing to assess the condition of tissue blood flow and to detect the features of the microcirculation under different types of higher nervous activity. The obtained results showed that at most of students high-amplitude LDF was registered. Determining the characteristics of students` blood microcirculation with different types of higher nervous activity among healthy students 17-22 years showed that the prevailing strong and active types of temperament (choleric and sanguine) students hiperemichnym type of temperament. Percentage strong, but few mobile (phlegmatic) students was minimal and there was a greater number of students with hiperemichnym type of microcirculation, and the percentage weak sedentary (melancholic) type had a mean and often observed in students from normoemichnym type of blood microcirculation.</p> <p><em>Keywords: the blood microcirculation, LDF-metry,</em><em> </em><em>the</em><em> higher nervous activity, temperament.</em></p>