Geomagnetic storm under laboratory conditions: randomized experimentстатья
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Дата последнего поиска статьи во внешних источниках: 4 мая 2018 г.
Аннотация:The influence of the previously recorded geomagnetic storm (GS) on human cardiovascular system and microcirculation has been studied under laboratory conditions. Healthy volunteers in lying position were exposed under two artificially created conditions: quiet (Q) and storm (S). The Q regime playbacks a noise free magnetic field (MF) which is closed to the natural geomagnetic conditions on Moscow’s latitude. The S regime playbacks the initially recorded 6 hours geomagnetic storm which is repeated four times sequentially. The cardiovascular response to the GS impact was assessed by measuring capillary blood velocity (CBV) and blood pressure (BP) and by the analysis of the 24-hour ECG recording. A Storm-to-Quiet ratio for the cardio intervals (CI) and the heart rate variability (HRV) was introduced in order to reveal the averaged over group significant differences of HRV. An individual sensitivity to the GS was estimated using the autocorrelation function analysis of the high frequency (HF) part of the CI spectrum. The autocorrelation analysis allowed for detection a group of subjects of study which autocorrelation functions (ACF) react differently in the Q and S regimes of exposure.