Dynamics of indicators of shock blood volume, blood volume and blood hemoglobin concentration in cross-country skiers during training in the middle mountains
The training of the athlete always involves the search for new and modern training methods and means, and also requires deeper study of the physiological processes occurring in the body under their influence. The purpose of this article was to study the dynamics of indicators of stroke blood volume, blood volume and blood hemoglobin concentration in skiers-racers during the training camp, which lasted 21 days with ascent to the middle mountains and descending from the mountains. The study involved 6 cross country skiers aged 16-17 years. The research method involved measuring the stroke volume of blood and blood volume using the "Diamant" rheograph, determination of the blood hemoglobin concentration using the automatic hemoglobin analyzer Hemo-control. As a result of the work, the significant increase in the load on the functions of the cardiovascular system in mid-altitude conditions was shown, expressed in a decrease in blood volume, stroke volume of blood and increase in its viscosity (increase in the concentration of hemoglobin in blood).