Propagation of shear waves in muscle tissue |
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Authors: | D A Afanas’eva A K Tsaturyan |
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Institution: | 1.School of Mechanics and Mathematics,Moscow State University,Moscow,Russia;2.Research Institute of Mechanics,Moscow,Russia |
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Abstract: | A mathematical model of the propagation of acoustic shear waves in muscle tissue is considered. Muscle is modeled as an incompressible
transversely isotropic viscoelastic continuum with quasi-one-dimensional active tension. There are two types of shear waves
in an infinite medium. Waves of the second type (transverse) propagate without decay even when myofibril viscosity is taken
into account. A problem of standing transverse waves in a rectangular layer was investigated numerically. The values of the
problem parameters are found for which one can easily estimate the active tension (or muscle tone) from the characteristics
of standing waves. This value is informative for diagnostics of the muscle state. |
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