Indicators of autonomic regulation of the heart in younger schoolchildren who experienced the stress of military operations

Abstract

The autonomic nervous system is particularly susceptible to stress. The results of a study of prospective features of heart rate variability in primary school children who have experienced the stress of military operations are presented. 128 children of primary school age who found themselves in the zone of active hostilities were under observation. The assessment of vegetative functions was carried out by analyzing the components of heart rate variability. The younger students of the Io group had a more pronounced sympathicotonia already a year after the start of the stress factor exposure. By the end of the third year, the sympathicotonic orientation of the regulation of the heart rhythm was replaced by vagotonic in children living in the territory of the stressful situation of the war. The peculiarities of vegetative regulation in children who are and have left the combat zone indicate an increase in the costs of the functional reserve to maintain the normal level of functioning of the body.