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Cardiovascular and Respiratory Systems of Students Living under Mountain Hypoxia

The article studies the effect of high-altitude hypoxia on indicators of students' cardiovascular and respiratory systems. The results show that mountain conditions increase the level of blood oxyhemoglobin, duration of excitement to the ventricles, lung ventilation, blood pressure, a heart rate, atrial systole, and contribute to the spread of excitement to the ventricles. The level of oxyhemoglobin in experimental group I and experimental group II exceeded that in the control group by 1.2 and 1.3 %, respectively. The heart rate of female students was less by 2.0 beats per minute in the low mountains, and by 4.3 – in the middle mountains (in male students – by 1.5 and 3.7, respectively). The systolic pressure level was lower by 4.9 mm in girls and by 3.6 – in boys. The lung ventilation value was higher by 0.90 liters in female students and by 0.45 liters in male students. The LC value increased by 0.33 liters in female and by 0.47 liters in male residents of Sharoy district.