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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. 2014; 60(1): 34-40


Dynamics of ischemic skeletal soleus muscle contraction in rats

Khoma OM1, Zavodovs'kyĭ DA1, Nozdrenko DN1, Dolhopolov OV2, Miroshnychenko MS1, Motuziuk OP3.

  1. Taras Shevchenko National University of Kyiv, Ukraine
  2. Institute of Traumatology and Orthopedics NMA Ukraine, Kyiv, Ukraine
  3. Lesya Ukrainka Eastern European National University, Luts'k, Ukraine
DOI: https://doi.org/10.15407/fz60.01.034

Abstract

The processes of change in the rate of generation of power response of artiRcially ischemic muscle using frequency modulated electrical efferent stimulation were investigated. A strain-gauge technique for registration of contraction process was used. Ischemia was induced by ligating main blood vessels of lower extremity. It is shown that ischemia causes a decrease in muscle performance and reduces maximum frequency of the stimulus signal, which leads to the titanic contraction level. It is shown that the lowering of ischemic muscle strength and reduction of the time that needed to establish a steady state de- pended on the time of discharge segment in stimulation pattern.

Keywords: muscle, ischemia, contraction dynamics, power answer

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