[Quantification of artefacts in surface EMG by validating the lower frequency limit in clinico-physiologic studies].
The surface-EMG becomes more and more important because computer assisted analysing systems can be applied. The occurrence of artefacts makes it very difficult to compare several recorded EMG channels with each other. In this study a frequency related quantification of movement artefacts and ECG-related influences on the EMG is carried out to select a suitable lower cut-off frequency for surface-EMG investigations. In 764 monopolar surface-EMG-recordings of the neck and back muscles the solely artefact-caused part of EMG-segments was analysed and quantified by means of modelling methods.
Anders
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Institut für Pathologische Physiologie der Friedrich-Schiller-Universität Jena.
Schumann
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NP
Scholle
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Witte
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Zwiener
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D000328:Adult; D004576:Electromyography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
Quantifizierung von Artefakten im Oberflächen-EMG zur Validisierung der unteren Grenzfrequenz bei klinisch-physiologischen Untersuchungen.