5.10 Study of Biomechanical Parameters of Skeletal Muscles in …
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Fig. 5.46 Dependence of μ parameter on state of experimental skin area surface blood flow: a—
normal; b—hyperemia. The dependence of average frequency f spectrum on the state of experimental skin area blood flow; c—standard; d—hyperemia. The dependence of A s spectrum skewness
on surface blood flow of experimental skin area: e—standard; f—hyperemia. The dependence of Q
parameter on the state of surface blood flow of experimental skin area; g—standard; h—hyperemia.
Reprinted from [87] with permission
degree of its manifestation as well as objectification of its dynamics in the process of
treatment. Traditional methods of investigation of muscle pathophysiology are either
imperfect like myotonometry or connected with nociceptive impact on a patient like
stimulating isometric mechanomyography. And electromyography (EMG), which is
most widely applicable in investigation of patients with neurological diseases, gives
a limited image about contractive muscle activity and characterizes only indirectly
the main function of muscles—the contractile one.
The study of these questions with speckle-optical laser myography method and
comparison of the obtained results with clinical, electrotonometric and electromyographic data give the possibility to conduct a deeper analysis and a more adequate
interpretation of changes of tonic and contractive functions of muscles by diseases
of peripheral nervous system.
At angiopathies of a different etiology and vegetovascular form of neurological
manifestations of spine osteochondrosis, the study of microhemodynamics of skin
with noninvasive speckle-optical methods gives the possibility to assess the degree of
manifestation of trophic disorders and to objectify efficiency of treatment according
to blood flow dynamics.
Seven hundred and fifty speckle-optical myograms were registered while investigating the muscle overtone in patients with neurological manifestations of spine
osteochondrosis accompanied by a moderate or a full-blown pain or muscle-tonic
syndromes. The registration of intensity fluctuation spectra of scattered laser irradiation was conducted from the surface over the paravertebral muscles of lumbar
and thoracic spines from both sides, muscles of the back surface of a thigh and
gastrocnemius muscle of the right and the left legs. The study was conducted with
a sitting and standing person, at rest and at voluntary contractions of extremities
and at tonic reactions. The tonic condition of the observable muscles at rest and at
voluntary contractions on the diseased and sound sides was compared; besides, the
presence and the degree of manifestation of the nearest and remote synergies were
detected. For the mechanical measuring of the tone, mechanical myotonometer and
electrical myotonometer were used. Electromyographic activity was registered with
the electromyography “Diza.” In this process, there were taken into account the value
of the amplitude of the oscillations, asymmetry of this indicator, qualitative assessment: presence of the activity of fasciculation type at rest and during tonic reactions,
appearance of the pathologic electromyograms (II a and II b type), short grouping
of the increased amplitude “volleys” (electromyogram of III type), appearing of the
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