Journal
POLISH JOURNAL OF MEDICAL PHYSICS AND ENGINEERING
Volume 26, Issue 3, Pages 149-154Publisher
SCIENDO
DOI: 10.2478/pjmpe-2020-0017
Keywords
EMG; parameters; time-frequency; continuous wavelet; severity
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The aim of this work was twofold: first, to propose signal processing methods for assessing the temporal and spectral changes of parameters (mean absolute value, the energy and standard deviation as temporal parameters, total and mean power as frequency parameters) of the surface myoelectric signal of the various patient groups like normal, myopathic and neuropathic during muscles contraction of biceps. Secondly, to analyze this electrical manifestation of neuromuscular disorders by the implementation of time-frequency analysis using continuous wavelet that allows us to qualify this method to evaluate, appreciate the pathology and determine its degree of severity which was unable by extracting mentioned parameters. Our results showed that this approach presents satisfactory performances especially to follow patients with the least severe pathology.
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