Heart Rate Variability Peculiarities in Adolescents with Psychopathology in the Educational Environment

Abstract

Under conditions of inclusive education, students with health limitations, in particular, children with neurological and mental disorders, have the opportunity to study at a general school. The goal of this study was to assess the possibility of using analysis of heart rate variability (HRV) as a relatively simple tool for evaluation of the adaptive resources in students with mental disorders and for early detection of dysfunctions in the neuroregulatory mechanisms in healthy students. We compared the spectral parameters of HRV and peripheral blood pressure in healthy adolescents (n = 70) and adolescents with neuropsychiatric disorders (n = 58). Electrocardiogram was recorded for 2 minutes in a sitting posture, wearing a spirometric mask with voluntary breathing. Adolescents with mental disorders demonstrated a high total power of the HRV spectrum, an increased high-frequency power (0.15–0.4 Hz), a decreased low frequency / high-frequency ratio, and reduced total power and low frequency spectral power of systolic blood pressure variability. The revealed differences were observed mainly in males. The presented data demonstrate an increased vagal tone in adolescents with mental disabilities. Our findings support the idea that HRV can be used in schools to identify risk groups of vulnerability to mental disorders.