414
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
Fig. 5.28 Analyzer of SK4-72 spectrum type—information registration system (a), recording of
intensity fluctuation spectrum of a dynamic speckle-field on the analyzer of SK4-72 spectrum type
(b) and recording of intensity fluctuation spectrum of a dynamic speckle-field on the computer of
PC AT 286 type (c). Reprinted from [87] with permission
5.7 Study of Intensity Fluctuation Spectra of Dynamic
Speckle-Fields of Skeletal Muscles of Healthy People
Obtained with the Laser Specklometer and the Speckle
Analyzer
The calculations conducted in paragraph 5.4 showed that longitudinal oscillation
amplitudes of a muscle do not exceed 5 μm. This gives the possibility to investigate
longitudinal vibrations of human skeletal muscles during contraction.
In this paragraph, there are presented the investigation results of biomedical characteristics of human skeletal muscles. The experiments were conducted on a developed prototype of the laser specklometer. A series of investigations of contractive
activity of human skeletal muscles was conducted in order to find most sensitive
parameters of intensity fluctuation spectrum of a dynamic speckle-field, which bear
information about the functional state of the muscles.
Motion (oscillation) of skin above the skeletal muscle during its constipation or
movement of blood cells in the capillary network causes shift and boiling of speckles
formed by the scattered laser radiation, and it represents just a pattern of intensity
5 Laser Specklometer, Speckle-Optical Diagnostics and Laser …
Fig. 5.28 Analyzer of SK4-72 spectrum type—information registration system (a), recording of
intensity fluctuation spectrum of a dynamic speckle-field on the analyzer of SK4-72 spectrum type
(b) and recording of intensity fluctuation spectrum of a dynamic speckle-field on the computer of
PC AT 286 type (c). Reprinted from [87] with permission
5.7 Study of Intensity Fluctuation Spectra of Dynamic
Speckle-Fields of Skeletal Muscles of Healthy People
Obtained with the Laser Specklometer and the Speckle
Analyzer
The calculations conducted in paragraph 5.4 showed that longitudinal oscillation
amplitudes of a muscle do not exceed 5 μm. This gives the possibility to investigate
longitudinal vibrations of human skeletal muscles during contraction.
In this paragraph, there are presented the investigation results of biomedical characteristics of human skeletal muscles. The experiments were conducted on a developed prototype of the laser specklometer. A series of investigations of contractive
activity of human skeletal muscles was conducted in order to find most sensitive
parameters of intensity fluctuation spectrum of a dynamic speckle-field, which bear
information about the functional state of the muscles.
Motion (oscillation) of skin above the skeletal muscle during its constipation or
movement of blood cells in the capillary network causes shift and boiling of speckles
formed by the scattered laser radiation, and it represents just a pattern of intensity