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EMG, bite force, and elongation of the masseter muscle under isometric voluntary contractions and variations of vertical dimension

Authordc.contributor.authorManns, Arturo 
Authordc.contributor.authorMiralles, Rodolfo 
Authordc.contributor.authorPalazzi, Carmen 
Admission datedc.date.accessioned2018-12-20T15:22:44Z
Available datedc.date.available2018-12-20T15:22:44Z
Publication datedc.date.issued1979
Cita de ítemdc.identifier.citationThe Journal of Prosthetic Dentistry, Volumen 42, Issue 6, 2018, Pages 674-682
Identifierdc.identifier.issn00223913
Identifierdc.identifier.other10.1016/0022-3913(79)90200-2
Identifierdc.identifier.urihttp://repositorio.uchile.cl/handle/2250/158991
Abstractdc.description.abstractThe relation between EMG activity, bite force, and muscular elongation was studied in eight subjects with complete natural dentition during isometric contractions of the masseter muscle, measured from 7 mm to almost maximum jaw opening. EMG was registered with superficial electrodes and bite force with a gnathodynamometer. In series 1, recordings of EMG activity maintaining bite force constant (10 and 20 kg) show that EMG is high when the bite opening is 7 mm, decreases from 15 to 20 mm, and then increases again as jaw opening approaches maximum opening. In series 2, recordings of bite force maintaining EMG constant show that bite force increases up to a certain range of jaw opening (around 15 to 20 mm) and then decreases as we approach maximum jaw opening. Results show that there is for each experimental subject a physiologically optimum muscular elongation of major efficiency where the masseter develops highest muscular force with least EMG activity. © 1979 The C. V. Mosby Co.
Lenguagedc.language.isoen
Type of licensedc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chile
Link to Licensedc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cl/
Sourcedc.sourceThe Journal of Prosthetic Dentistry
Keywordsdc.subjectOral Surgery
Títulodc.titleEMG, bite force, and elongation of the masseter muscle under isometric voluntary contractions and variations of vertical dimension
Document typedc.typeArtículo de revista
Catalogueruchile.catalogadorSCOPUS
Indexationuchile.indexArtículo de publicación SCOPUS
uchile.cosechauchile.cosechaSI


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Attribution-NonCommercial-NoDerivs 3.0 Chile
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Chile