Study type: Medical/biological study (experimental study)

Influence of local geomagnetic storms on arterial blood pressure med./bio.

By: Dimitrova S, Stoilova I, Cholakov I
Published in: Bioelectromagnetics 2004; 25 (6): 408-414
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Aim of study (acc. to author)

To assess the influence of local geomagnetic storms on some human physiological parameters such as blood pressure, heart rate and general well-being.

Endpoint

Exposure

Exposure Parameters
Exposure 1: -

General information

Influence of local geomagnetic storms were assessed on human physiological parameters

Exposure 1

Main characteristics
Frequency
Type
Exposure setup
Parameters

No parameters are specified for this exposure.

Additional parameter details

max. variation of geomagnetic field 320 nT min. variation of geomagnetic field 35 nT

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • before exposure
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

The data of this study were obtained by 86 volunteers (33 male, 56 female, average age of 47.8 +/- 11.9 years, 26 of them were undergoing cardiovascular drug treatment). Data were recorded between 1st of october 2001 to 9th of November 2001 and 8th of april 2002 to 28th may 2002 in Sofia/Bulgaria (i.e. middle latitudes). The time periods were chosen due to the expected high probability for solar activity and changes in the geomagnetic field (35-320 nT, which were recorded by the Bulgarian Geomagnetic Observatory).
Arterial, systolic and diastolic blood pressure were found to be significantly increased during increased geomagnetic activity. No significanlty effects on heart rate could be found.

Study character:

Study funded by

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