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Dynamics of ischemic skeletal soleus muscle contraction in rats
Khoma OM1, Zavodovs'kyĭ DA1, Nozdrenko DN1, Dolhopolov OV2, Miroshnychenko MS1, Motuziuk OP3.
- Taras Shevchenko National University of Kyiv, Ukraine
- Institute of Traumatology and Orthopedics NMA Ukraine, Kyiv, Ukraine
- 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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