Solar and geomagnetic activity effects on heart rate variability
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Investigation into possible space weather hazards on cardiovascular system has been performed. A group of 14 healthy volunteers was examined in the spring of 2009 and 2 healthy persons performed electrocardiograph records for a period of 1 year everyday in the morning and in the evening. Results revealed that heart rate variability (HRV) parameters of the group varied strongly from the day before till 3 days after the registered weak storms during the time of investigation. Blood pressure and subjective psychophysiological complaints increased statistically significantly from 0 day till +2nd day. Heart rate (HR) of the group showed a trend for decrease. It was established that morning measurements were more sensitive to space weather variations in comparison with evening measurements. Both persons with prolonged registrations for a period of year did not reveal graded response to geomagnetic storms with different intensities. Both of them decreased HR during moderate storms, but they increased HR during major storms and on the days before and after these storms. HRV parameters varied significantly on these days.
KeywordsSpace weather Cardiovascular system Blood pressure Heart rate
We thankfully acknowledge the contribution of all volunteers who took part in the examinations.
- Angelov I, Dimitrova S (2009) Device and method for assessing possible effects of 900 MHz EMF and geomagnetic activity on heart rate variability. Proceedings of the third international scientific conference FMNS-2009: 135–142Google Scholar
- Clifford GD, Azuaje F, McSharry PE (2006) Advanced methods and tools for ECG analysis. Artech House Publishing, LondonGoogle Scholar
- Cornelissen G, Halberg F, Breus T, Syutkina E, Baevsky R, Weydahl A, Watanabe Y, Otsuka K, Siegelova J, Fiser B, Bakken E (2002) Non-photic solar associations of heart rate variability and myocardial infarction. JASTP 64:707–720Google Scholar
- Dimitrova S, Babayev ES, Mustafa FR, Stoilova I, Taseva T, Georgieva K (2009b) Geomagnetic storms and acute myocardial infarctions morbidity in middle latitudes. Sun Geosphere 4(2):72–78Google Scholar
- Dmitrieva LV, Obridko VN, Ragulskaya MV, Reznikov AE, Khabarova OV (2001) Response of the human body to factors related to solar activity variations. Biophysics 46(5):905–910Google Scholar
- Khabarova OV, Dimitrova S (2009) On the nature of people’s reaction to space weather and meteorological weather changes. Sun Geosphere 4(2):60–71Google Scholar
- Oinuma S, Kubo Y, Otsuka K, Yamanakata T, Murakami S, Matsuoka O, Ohkawa S, Cornelissen G, Weydahl A, Holmeslet B, Hall C, Halberg F (2002) Graded response of heart rate variability, associated with an alteration of geomagnetic activity in a subarctic area. J Biomed Pharmacother 56(2):284–288CrossRefGoogle Scholar
- Ori Z, Monir O, Weiss J, Sayhouni X, Singer DH (1992) Heart rate variability, frequency domain analysis. Cardiol Clin 10:499–537Google Scholar