A biofeedback by hrv-parametres and serotonin levels in young people of the Nenets Autonomous district and Arkhangelsk area
The aim was to investigate a heart rate variability (HRV) biofeedback parameters and the serotonin serum level in young people aged 14–17 years – inhabitants of the Nenets Autonomous Okrug and Arkhangelsk region. The girls and boys of the Nenets Autonomous District have higher serotonin serum level than in the girls and the boys of the Arkhangelsk region. The success of HRV-biofeedback in a girls and a boys of the Nenets Autonomous District have was accompanied by a significant increase in baroreflex activity, indicating that the role of serotonin in the increased baroreflex sensitivity. A successful HRV-biofeedback in a young people of the Nenets Autonomous District and Arkhangelsk region was accompanied by reduced subcortical center activity of a sympathetic heart rate regulation.