| Popis: |
The present state of knowledge on the effects of exposure to medium frequency electromagnetic fields (MF EM) on the circulatory system derives mainly from the reports of Soviet studies of the 60s which indicated that in the exposed people such symptoms develop as heart rhythm disturbances, impaired conduction, decreased amplitude of ECG records and blood pressure changes (hypo-or hypertension)1,2,3,4,5. Although since these studies a considerable progress in ECG methodology has been made, their results have not as yet been verified using any objective methods. Therefore, we have undertaken the present study in order to evaluate the cardiovascular function in workers occupationally exposed to EM fields at different exposure levels and frequencies. |
