METHOD OF DETERMINING THE SENSITIVITY OF BAROREFLEX REGULATION OF THE HEART RATE TO VARIATIONS IN THE LOCAL GEOMAGNETIC FIELD IN HUMANS Russian patent published in 2023 - IPC A61B5/24 

FIELD: medicine, cardiology.

SUBSTANCE: invention can be used to determine the sensitivity of baroreflex heart rate regulation (BR CP) to variations in the local geomagnetic field (GMF) in humans. Human cardiointervalogram is recorded for 30 minutes and 1-minute or 2-minute with an overlap of 1 minute values of heart rate variability (HRV) in the slow-wave frequency range are calculated, the share of LF% of the total power of the HRV spectrum is determined. Subsequently, the correlation coefficient of LF, LF% indicators is calculated with 1-minute induction values for each of the components of the local geomagnetic field (GMF) X, Y, Z and F after band-pass filtering of the time series with the Blackman-Harris window with the values of the upper cutoff frequencyƒr=0.9995 from the Nyquist frequency and the value of the lower cutoff frequency fl =0.70. At certain levels of significance of the correlation between the values of LF and the values of the magnetic induction for one of the components of the GMF, a weak or sufficient sensitivity of the BR SR to variations in the GMF is stated.

EFFECT: method allows to assess the degree of adaptive capabilities of the human cardiovascular system to the instability of the geomagnetic field by determining the degree of synchronization of the GMF variations and the slow-wave part of the HRV.

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