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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2015; 61(3): 81-89


CHANGING OF ISCHEMIC M. SOLEUS TETANIC CONTRACTION PARAMETERS IN RATS WITH CHRONIC ALCOHOL INTOXICATION

O.A Melnychuk, О.P. Motuziuk , S.Ye. Shvayko

    Lesya Ukrainka Eastern European National University
DOI: https://doi.org/10.15407/fz61.03.081

Abstract

This article deals with the changes of isolated ischemic m. soleus tetanus parameters in rats with chronic alcohol intoxication. The experiments were carried out on 15 male Wistar rats that were divided into three groups for 5 animals in each: group І (control) and two groups in which was induced hind limbs acute muscles ischemia: group ІІ ‒ rats without alcoholic intoxication, group ІІІ ‒ rats with chronic alcoholic intoxication. Strain measurement muscle mechanical activity were conducted in isometric mode under conditions of direct electrical muscular preparation stimulation. It is proved that ischemic m. soleus tetanic force in rats with chronic alcoholic intoxication in comparison with rats without alcoholic intoxication does not significant changes. But signifycantly increases the reaching tetanus peak time. It is shown that in rats without alcoholic intoxication and with chronic alcoholic intoxication in comparison with intact animals, significantly decreases the duration of ischemic m. soleus stabile force level. It is shoved significant changes of individual muscles contraction time course of ischemic m. soleus tetanus in this rats group in comparison to intact animal. It is shown that these changes influence on successive muscular contraction efficiency of frequency summation in ischemic m. soleus tetanus and their speed-power characteristics.

Keywords: m. soleus; ischemia; alcohol intoxication; tetanic force; contractile characteristics.

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