Bioelectrical Impedance of the Left Ventricular Myocardium, Lung in Rats after Forced Swimming Training and Subsequent Detraining
Multifrequency bioimpedance studies were performed in rats subjected to an eight-week swimming course followed by an eight-week no-exercise period and control animals. A significantly lower ratio of the phase angles of the bioelectrical impedance of the lung tissue at two frequencies of electric cur...
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Published in | Journal of evolutionary biochemistry and physiology Vol. 59; no. 1; pp. 69 - 81 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Moscow
Pleiades Publishing
2023
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | Multifrequency bioimpedance studies were performed in rats subjected to an eight-week swimming course followed by an eight-week no-exercise period and control animals. A significantly lower ratio of the phase angles of the bioelectrical impedance of the lung tissue at two frequencies of electric current in rats after prolonged physical activity in comparison with control animals was revealed, which may indicate structural and functional changes in the lung tissue. No significant differences were found in the bioimpedance of the myocardium of the left ventricle of the heart in rats of the two groups after eight weeks of swimming. After an eight-week period of absence of physical activity, in detrained rodents, in comparison with controls, a significantly lower active resistance of the bioelectrical impedance of the myocardial tissue and a significantly higher ratio of the bioelectrical impedance resistance of the lung tissue at two frequencies of electric current were observed, which may indicate edema, as well as the preservation of those formed during exercise new microvessels. |
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ISSN: | 0022-0930 1608-3202 |
DOI: | 10.1134/S0022093023010064 |