COMPARATIVE CHARACTERISTICS IN THE POSTCOVID PERIOD, CHANGES IN PHYSIOMETRIC INDICATORS AND EXCITABILITY OF CEREBRAL CORTEX CELLS WHEN USING A JUMP ROPE IN YOUNG PEOPLE STUDYING AT SPORTS AND MEDICAL UNIVERSITIES LIVING IN BELARUS AND RUSSIA
The jump rope is a children's cardio simulator that simultaneously trains the cerebellum, interhemispheric interaction, concentration and attentiveness. Ten minutes of jumping rope is equal to 30 minutes of running to increase the efficiency of the cardiovascular system. Objective: to evaluate the physiometric parameters and excitability of the cells of the cerebral cortex in the post-ovoid period in young people studying at sports and medical universities living in Belarus and Russia when performing jumping exercises using a jump rope. Material and methods. The motor activity of the right and left lower extremities was measured before and after the rotation of the jump rope (ropskipping), with putting it on one leg. blood pressure level, heart rate and pulse rate, pulse pressure, oxygenation. Based on the teppig test conducted before and after the jumping load, the excitability of cortical cells and the dynamics of the mobility of the main cortical processes were evaluated. The analysis of the results of changes in blood pressure in the subjects, depending on the revolutions made on the left and right legs and the mistakes made during the exercise, was carried out. The object of the study were students of medical medical and sports universities aged 18-22 years. Results. When assessing oxygenation in the post-ovoid period, students of a sports university did not receive changes due to jumping load. The average values of systolic and diastolic pressure in boys and girls of medical university before and after the jumping load using a jump rope fit into the normal values for this age group. The heart rate of medical university students increased with the load with jumping exercises using a jump rope, but did not go beyond the parameters of normative indicators. The increase in blood pressure indicators (systolic and diastolic under load were insignificant, characteristic within the framework of a physiological increase in blood pressure on the amount of loads performed, there were no significant differences among the groups of medical and sports university students. Conclusions 1. The physiometric indicators of students of medical and sports universities of jumping exercises with a jump rope did not go beyond the limits of the normative indicators determined by the load. 2. Dynamics of mobility of nervous processes (DPNP) among medical university students, it significantly differed from the indicators obtained from student-athletes. 3. The results of the assessment of the dynamics of the mobility of nervous processes revealed in the students of the sports university a low excitability of the cells of the cerebral cortex and a decrease in the functional state of the nervous system, which, after jumping exercises with a jump rope, according to the data obtained during the study on the right hand, improved somewhat. 4. The jump rope can serve as a tool for physical education exercises to train the motor activity of students with a low level of motor activity. 5. In the group of students who underwent Covid-19, there was an increase in blood pressure of the initial, before the jump load, and during the load its decrease. 6. Persons who have undergone Covid-19 are not recommended to use a jump rope during the rehabilitation period, for 3 months.