Features of the regulation of the scatter function and the concentration of HRV in students of different ethnic groups

Conducted a study of the regulation of the function of scatter and concentration of HRV in five ethnic groups of students (АгаЬ, Indian, African, Latin American, Russian) at the age of 20-25 years in two stages - at the beginning and end of the 1st year of study. The paths of autonomous regulation of the functions of HRV are shown: scatter (parasympatotonia) and concentration (sym-pathotonia). Under physiological conditions, it was established: in the агаЬ, latin-american, and russian groups, at both stages and at the first stage, the stabilization function of HRV prevailed in the indian group; in the african group at both stages and in the indian at the second - the function of the spread of HRV in the values of RRNN. According to the SDNN values, only the african group at the 1st stage was dominated by the scatter function of HRV, while for the other groups, the function of its stabilization prevailed. In terms of the RMSSD parameter, all groups were dominated by the spread function of HRV, most pronounced at the 1st stage by the indian, african, and latin-fmerican groups, and the stabilization function of HRV was detected only at the 2nd stage by the latin- american and russian groups...