The Features of the Indices of Cardiovascular System of Students with Different Types of Self-Regulation of Blood Circulation

Abstract

Objective: to assess the state of the cardiovascular system of young men at different types of self-regulation of blood circulation, studying in medical university. Materials and methods . 58 medical students, whose average age was 19 ± 1,13 years, were examined. The study program included recording of electrocardiogram (ECG), registration of central hemodynamic parameters, as well as determination of systolic (SAP) and diastolic (DAP) arterial pressure, heart rate (HR). The parameters of the cardiovascular system in students at three types of self-regulation of blood circulation (TSC): cardiac, cardiovascular and vascular. Results . It was found that the parameters of students with cardiac TSC were characterized by a significant increase of HR (р < 0,001), shortening of R-R (р < 0,01), QT (р < 0,01), QTc (р < 0,01) intervals, increased values of cardiac output (р < 0,001), cardiac index (р < 0,001) and reduced total peripheral resistance (р < 0,001) in comparison with the parameters of the boys with cardiovascular TSC. Young people with vascular TSC had significantly high values of SAP and DAP (р < 0,05), total peripheral resistance (р < 0,0001), significantly low values of cardiac output (р < 0,0001), cardiac index (р < 0,0001), without changing of the examined ECG parameters in comparison with boys with cardiovascular TSC. Conclusion . Statistically significant differences in the parameters of the cardiovascular system in students with different types of self-regulation of blood circulation were established.