Differences in the Sensitivity of the Baroreflex of Heart Rate Regulation to Local Geomagnetic Field Variations in Normotensive and Hypertensive Humans

• Published in: Life
• Main Authors: Poskotinova, Liliya, Krivonogova, Elena, Demin, Denis, Zenchenko, Tatyana
• Format: Text
• Language: English
• Published: MDPI 2022
• Subjects: Article; Arkhangelsk
• Online Access: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9316645/; http://www.ncbi.nlm.nih.gov/pubmed/35888190; https://doi.org/10.3390/life12071102

Synchronization between heart rate variability (HRV) in the low-frequency (LF) range (0.04–0.15 Hz) and 1-min variations in the components (X, Y, Z)and the total vector (F) of geomagnetic induction (nT) was studied in normotensive (blood pressure up to 140/90 mmHg) and hypertensive (blood pressure above 140/90 mmHg) individuals living in the Arkhangelsk region (60°51′52″ N 39°31′05″ E).The duration of registration of HRV for each person is 30 min in a sitting position. The most pronounced synchronization of the LF parameter, which reflects baroreflex activity, with variations in the GMF was found in normotensive individuals. The absence of a significant synchronization of the LF parameter with variations in the GMF components indicates a decrease in the sensitivity of the baroreflex mechanism and a risk of dysregulation of vascular tone, especially in people with arterial hypertension, under conditions of instability of the geomagnetic field.