Some Factors Affecting the Power Spectra of Surface Electromyograms in Isometric Contractions

Bibliographic Data

ID19261535
AuthorsHaruhiko Sato (0000-0002-1744-2388, Department of Ergonomics, Kyushu Institute of Design, corresponding author)
Year1976
Volume84
Issue2
Pages105-113
Publication date1976-01-01
Open AccessYes
TypeARTICLE
VenueThe Journal of Anthropological Society of Nippon (JOURNAL)
Journal identifiersISSN: 0003-5505 • E-ISSN: 1884-765X
PublisherAnthropological Society of Nippon (PUBLISHER • JP)
DOI10.1537/ase1911.84.105
OpenAlexW2333772523
LanguageEN
Citations received2
References cited7

In order to investigate the variations in the EMG power spectra, the power spectra of the bipolar surface EMG of the biceps brachii were obtained for the frequency range from 6 to 192 Hz by the autocorrelation and its Fourier transformation technique. The EMG power spectra of the biceps brachii showed relatively definite pattern with some intra- and inter-individual variations. The difference in the EMG power spectra between the right and left biceps brachii was not larger than the inter-individual variation. No systematic variation was observed in the EMG power spectra either with the contraction level or with the muscle length. It was concluded that the power spectra of the bipolar surface EMG of a muscle show relatively definite pattern irrespective of subjects, right- or left-side, contraction level and muscle length at least for normal biceps brachii if constant electrode condition is maintained

Biceps · Biceps brachii muscle · Contraction (grammar) · Electromyography · Isometric exercise · Muscle contraction · Physical medicine and rehabilitation · Physics · Spectral line · Anatomy · EEG and Brain-Computer Interfaces · Internal Medicine · Mathematics · Medicine · Motor Control and Adaptation · Muscle activation and electromyography studies

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