Functional state of the students’ cardiovascular system under the conditions of mountain hypoxia

Abstract

The article presents the functional state of the cardiovascular system of students under conditions of high-altitude hypoxia. From the analysis of the results of our research, it can be argued that due to the fact that students live under conditions of a reduced oxygen content in the atmospheric air, there is a significant increase in the systolic output of their hearts. Thus, the systolic blood volume of students under the conditions of mountain hypoxia increases, reaching the maximum values of 63.4 ml (P <0.05) in males and 64.4 in females in the middle- level mountains. The range of pulse pressure between the groups of males is 1.5%, and females 1.7. The level of average dynamic blood pressure in males in the middle mountains is 3.5% lower, and in females of the same age is 3.9% lower, respectively, compared to the plains. The drop in the minute blood volume at an altitude of 1600 m among female students was 2.1%, and among peers - 2.2, compared to the 170 m level. The decrease in total peripheral vascular resistance (TPVR) at the maximum altitude was 1.5% in females, and 2.7% in males, compared to the plain-related data. The value of blood circulation efficiency coefficient (CEC) and endurance factor (EF) in the middle-level mountains among female students decreased by 6.2 and 2.7%, among peers - by 4.2 and 5.4%, compared to the plain. Thus, the depth of the changes caused is directly proportional to the level of the acting hypoxia.

Imprint

Vakha A. Anzorov, Svetlana V. Moryakina. Functional state of the students’ cardiovascular system under the conditions of mountain hypoxia. Cardiometry; Issue 21; February 2021; p.124-129; DOI: 10.18137/cardiometry.2022.21.124129; Available from: https://www.cardiometry.net/issues/no21-february-2022/functional-state-of-the-students-cardiovascular-system