ASSESSMENT OF THE MICROCIRCULATION SYSTEM REACTIVITY TO PHYSICAL LOAD WITH THE COMBINED USE OF NATURAL BIO SUPPLEMENTS AND LOW-INTENSITY LASER RADIATION IN ATHLETES WITH DIFFERENT TYPES OF HEART RATE REGULATION

The blood microcirculation system is the final link of the cardiovascular system, at the level of which the plastic and energy substrate is supplied to the cells of the body. The adaptive capabilities of the microvasculature are provided by the work of both local and system-wide regulatory mechanisms. The paper considers the effect of the complex use of supplements and low-intensity laser radiation (LILR) on the functionality of the microcirculation system in sprinters with different types of autonomic regulation of heart rate at rest and after exposure to training physical activity.

The research purpose is to study the effect of the complex use of supplements and LILR on the functional stability of the microcirculation system to anaerobic physical loads in athletes with different types of autonomic regulation of heart rate.

Materials and methods of the research. 74 male sprinters aged 18-25 years took part in the study at the preparatory stage of the one-year training cycle. To analyze the heart rate variability, the device “Varicard 2.51” and the program “Iskim 6” (LLC “RAMENA”, Ryazan) were used. Physical activity was set using a modernized bicycle ergometric testing on an Ergomedic 894E Peak Bike device from Monark Exercise (Sweden). The subjects performed physical activity with 5% of the athlete's body weight load for 45 seconds. To study the parameters of microcirculation, the method of laser Doppler flowmetry was used on the apparatus LAK-02 of NPP LAZMA (Moscow, Russia). The product obtained from the drone larvae of the honey bee “Bilar” (LLC MIP “Apiprodukt”, Bryansk, Russia) and “Multicomplex MDX” (NGO “Probio”, Bryansk, Russia) were used as supplements.

Results. In sprinters, the reactivity of the microcirculation system to a test physical load depends on the type of autonomic regulation of the heart rate. The performance of short-term physical activity is accompanied by an increase in perfusion, optimization of local regulatory mechanisms aimed at increasing blood flow through the exchange link of the microcirculatory bed and improving microcirculatory-tissue relations in terms of oxygen delivery and its participation in redox reactions in the mitochondria of the cell.

Conclusion. After the course application of supplements and LILR, the level of microcirculatory-tissue relations to physical activity increased significantly. The greatest effect is observed in sprinters with dominance of the central mechanism of heart rate regulation (types I and II).

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