Main Article Content
The study is devoted to the study of the relationship between the characteristics of the manifestation of anxiety in adolescents studying in a boarding-type educational institution, with indicators of heart rate variability, reflecting the functional state of the cardiovascular system and the body as a whole.
The study involved adolescents aged 14-16 years old, studying in a boarding school (112 people).The study of the level and characteristics of the manifestation of school anxiety was carried out according to the method of A.M. Prikhozhan. Evaluation of heart rate variability indicators was carried out using a cardiorhythmographic program with subsequent analysis of the studied parameters according to R.M. Baevsky, according to which the types of autonomic regulation were identified in the examined adolescents: vagotonic, sympathicotonic, eutonic.The data obtained in the course of the study were processed using the «Statistica 10.0»program.For all studied indicators, the mean and error of the mean, the reliability of differences were calculated. To identify the relationship between the indicators of anxiety and the features of autonomic regulation of cardiac activity, a correlation analysis was carried out.
It was shown that adolescents with increased anxiety demonstrate an increase in indicators reflecting sympathetic influences on the heart rate, both at rest and in orthostasis. For adolescent girls, a large number of negative correlations between heart rate variability indicators, reflecting the sympathetic effect on heart rate, are characteristic, compared with boys who have an opposite relationship.In adolescent boys, a decrease in the level of general anxiety is accompanied by an increase in the activity of the parasympathetic division of the ANS, and in girls, an increase in sympathetic influences on the heart rate.