Cardiovascular system indexes and heart rate in Magadan young male residents with different body constitution types

Introduction. The aim of the study is to explore interrelation and contingency between somatometric characteristics and heart rate variability in male students having resided in Magadan region area. Materials and Methods. Pursuing from the study aim we examined basic somatometric, cardiovascular and heart rate variability parameters in 558 young males of different so-matotypes: asthenia, normosthenia and hypersthenia. Results. Main results testify that the values of the heart rate were within the range of normotonia through the three examined groups (with small prevailing of parasympa-thetic link in the heart rate regulation). The hypersthenic subjects demonstrated a sounder parasympathetic link in their heart rate regulation, while asthenic subjects - sympathetic one. The asthenic subjects demonstrated reliably higher heart beats values being thus considered as having less efficient cardiovascular system functioning. The analysis of the percent ratio of the examined subjects accounting for initial autonomic tone in each body constitution group has shown that no difference had been found between the percentage in each somatotype group and the percentage in the whole sample. Discussion and Conclusions. The autonomic regulation types do not directly depend on somatometric characteristics and, particularly, on any type of the body constitution.