Change of microhemocirculation under cycle ergometer test in persons with various levels of tolerance to physical load

Aim. The article deals with establishing adaptation changes in the system of microhemocirculation in persons with various levels of tolerance to physical load. Materials and methods. 40 apparently healthy males aged 17-21 participated in the study. We studied microcirculation indicators using computer capillaroscopy in the area of the nail fold. Results. As a result of cycle ergometer test we revealed the increase in diameter of venous and transition capillary segments as well as the increase in the temperature of the area studied. We also revealed differences in the speed of capillary circulation between the groups with various levels of tolerance to physical load. Conclusion. The abovementioned changes in microcirculation indicators demonstrate various levels of vessel bed reactivity depending on the level of tolerance to physical load. We established that the speed of capillary circulation can be regarded as one of the informative markers, determining performance level and characterizing functional status of the body.