The influence of magnethotherapy on blood pressure in patients with and without arterial hypertension treated for lumbar back pain syndrome
Abstract
Background: Magnetotherapy is one of the methods applied in the treatment of back pain syndromes. Many patients with back pain syndromes suffer from arterial hypertension (AH). The influence of magnetic fields (MF) on blood pressure is not clearly recognized and its application in patients with arterial hypertension causes some concern. The aim of the study was to assess the influence of magnetotherapy applied in patients with lumbar and sacral back pain syndromes on blood pressure and pulse rate in patients diagnosed with arterial hypertension and treated for it and those without hypertension.
Materials and methods: 60 patients (pts) with lumbar and sacral back pain syndromes were included in the study. The patients were divided into 2 groups depending on the coexistence of hypertension. Magnetic fields procedures (magnetic induction 9 mT, frequency 40 Hz, impulse time – 0,5 s, impulse shape - rectangular) were performed in every patient. Blood pressure and pulse rate were measured 4 times in every patient: before, half time, after and 10 minutes after the procedure was completed.
Results: Higher blood pressure measurements before, during and after the procedure were observed in group 1. Significant blood pressure and pulse rate decrease during magnetotherapy procedures was observed in both groups. Reduction of blood pressure was not observed after 10 procedures.
Conclusions: 1. In the course of magnetotherapy procedure a significant decrease in systolic BP and pulse is observed in patients with hypertension and without AH. 2. Diastolic blood pressure is reduced during magnetotherapy in patients with hypertension and without AH. 3. The reduction in systolic BP and pulse lasts up to 10 minutes after the end of magnetotherapy procedure in patients with hypertension. 4. Magnetic field causes a significant increase in diastolic BP 10 minutes after the end of the procedure in the group with AH and without AH. The duration of this effect, however, requires confirmation in further studies.
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