FACTOR STRUCTURE OF PARAMETERS OF EX VIVO MUSCLE GASTROCNEMIUS MEDI-ALIS ISOMETRIC CONTRACTION IN LABORATORY RATS WITH ACUTE PELVIC LIMB ISCHEMIA
Journal Title: Вісник Одеського національного університету. Біологія - Year 2016, Vol 21, Issue 1
Abstract
Two factors that affect the own muscle contractile ability in isometric mode in rats with acute shim ischemia (1, 3 and 6 h), reproduced by compression of artery femoralis occlusion, were found by the application of method of analysis of the principal components, method of orthogonal rotation of factors in two-dimensional space varimax and scree plot criterion. Tetanic contraction of the muscle was recorded by the strain gauge method for 60 minutes. The muscle was irritated through rectangular pulses (voltage 2 V, 0.2 ms duration, frequency 50 Hz), which were formed in 12 cyclical stimulus patterns 3 sec duration and 5 min period. It was found that the first factor was loaded by variables that characterize the biomechanical muscle contraction properties: muscle strength, the time to peak tension, fusion index, muscle contraction and half-relaxation time, muscle strength increase during tetanic contraction and its reduction during tetanic half-relaxation, and the second factor - muscle fatigue index. The conclusion about the dependence of own ischemic muscle contractile ability in rats on variables of the first factor and influence of fatigue as a secondary factor was made.
Authors and Affiliations
O. A. Melnychuk, S. Ye. Shvaiko
Keywords
Related Articles
- EP ID EP308720
- DOI -
- Views 77
- Downloads 0
FEATURES OF ASSOCIATIVE LINKS BETWEEN NONHOMOLOGOUS ALLELES OF THE GENE-ENZYME SYSTEMS IN DIFFERENT RAPANA GROUPS OF BLACK SEA
Rapa whelk (Rapana venosa, Valenciennes, 1846) has a great influence on the operation of such an isolated marine ecosystem, as the Black Sea. However, many aspects of its vital functioning, including the genetic and bioc...
ATTACHMENT AND CHEMOTAXIS REACTIONS OF PHYTOPATHOGEN RHIZOBIUM RADIOBACTER IN PRESENCE OF LACTOBACILLUS PLANTARUM ISOLATED FROM PLANT SURFACES
Lactobacillus plantarum with strong antagonistic activities are the perspective microorganisms for protection of plants against phytopathogens. The aim of the investigation was to develop the methods to study the capabil...
MICROSCOPIC ALGAE OF BENTHOS OF THE STEPPE RIVER KUCHURGAN (THE NORTH-WESTERN BLACK SEA)
The results of the studies (2010-2016) of the species composition of microscopic algae of benthos of the steppe river Kuchurgan are presented. The aim of this work was to study the taxonomic composition of microscopic al...
PHYSIOLOGICAL INDICATORS AND YIELD OF GRAPE VARIETIES AROMATNIY AND CABERNET SAUVIGNON TREATED WITH DRUG AGROMAR
Introduction. Drug AgroMar based on Trichoderma lignorum H. is an ecologically safe biofungicide whose effectiveness in cultivating technical varieties of grapes has not been sufficiently studied under conditions of the...
FORGOTTEN HISTORY OF THE FAMOUS HYDROBIOLOGISTS
Presented little-known facts from the life of the outstanding hydrobiologists connected with the I. I. M echnikov Odessa National University.