CHANGES OF THE FUNCTIONAL PARAMETERS OF THE CARDIOVASCULAR SYSTEM IN LYCEUM PUPILS DURING THE PROCESS OF THEIR STUDIES

Abstract

Aim: to assess the changes of the functional parameters and indices of the cardiovascular system in lyceum pupils at the beginning and at the end of an academic year. Material and methods. We examined 41 pupils of the tenth form (28 girls and 13 boys) of the educational institution «Gomel State Regional Lyceum». Using the method of impedance cardiography at the beginning and the end of an academic year we registered the parameters of central hemodynamics: heart rate, stroke volume, minute volume, cardiac index, general peripheric resistance. We calculated the physiologic indices: index of functional state of organism, Robinson index, endurance ratio, Kerdo vegetative index. Results. It has been found that in the period from September till May there is a significantly considerable (р < 0.05) decrease of systolic and diastolic pressure, general peripheric resistance of vessels of girls and boys. The increment of the functional adaptation of organism to the academic process by the end of an academic year was manifested in the considerable increment of energy potential of the cardiovascular system (р < 0.05) and considerable increment of its endurance in lyceum pupils (р < 0.05). Conclusion. During an academic year lyceum pupils observe increment of adaptation mechanisms of the cardiovascular system to the academic process.