Document Type : Original Research
Authors
1 PhD, Department of Biophysics and Medical Informatics, Bukovinian State Medical University, Chernivtsi, Ukraine
2 MD, Department of Histology, Cytology and Embryology, Bukovinian State Medical University, Chernivtsi, Ukraine
3 MD, Department of Pathological Anatomy, Bukovinian State Medical University, Chernivtsi, Ukraine
4 PhD, Department of Histology, Cytology and Embryology, Bukovinian State Medical University, Chernivtsi, Ukraine
5 MD, Department of Anatomy, Clinical Anatomy and Operative Surgery, Bukovinian State Medical University, Chernivtsi, Ukraine
6 PhD Candidate, Department of Histology, Cytology and Embryology, Bukovinian State Medical University, Chernivtsi, Ukraine
Abstract
Background: An automatic massage produces health improving effects. After a single automatic massage, patients admit a feeling of invigoration, and a sense of relaxation. Some quantitative characteristics of physical effects produced by the automatic massage on the body, including the work of a heart were unavailable at that moment.
Objective: This study aims to find a quantitative impact of periodic low frequency mechanical vibrations on the relative change in a heart stroke volume.
Material and Methods: In this experimental study, the patients were exposed to the low frequency (12 Hz) planar mechanical vibrations. The blood pressures were measured before and after the automatic massage. Based on the measured values in the arterial blood pressure, a relative change in a stroke volume (SV) in patients was calculated.
Results: The increased systolic blood pressure was 6.3±2.0 mm Hg in women and 11.1±2.7 mm Hg in men. The increased diastolic pressure was 1.9±1.2 mm Hg in women, and 4.9±1.5 mm Hg in men. The minor increase in heart rate for women was 1.2±1.0 beats per minute, and 1.2±2.0 beats per minute for men. The assessment of stroke volume changes provided 9.6% and 7.1% increase during systole and diastole in male patients, respectively, and corresponding 6.7% and 4.7% increases for female patients.
Conclusion: The results of our work confirmed an increase in the systolic and diastolic blood pressures under the influence of periodic mechanical vibration of low frequency. We believe that the registered increase in blood pressure is a proof of the increase in a stroke volume (SV).
Keywords
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