title: Identification of the most significant electrode positions in electromyographic evaluation of swallowing-related movements in humans.
abstract: Surface electromyography (sEMG) is a well-established procedure for recording swallowing-related muscle activities. Because the use of a large number of sEMG channels is time consuming and technically sophisticated, the aim of this study was to identify the most significant electrode positions associated with oropharyngeal swallowing activities. Healthy subjects (N = 16) were tested with a total of 42 channels placed in M. masseter, M. orbicularis oris, submental and paralaryngeal regions. Each test subject swallowed 10 ml of water five times. After having identified 16 optimal electrode positions, that is, positions with the strongest signals quantified by the highest integral values, differences to 26 other ones were determined by a Mann-Whitney U test. Kruskal-Wallis H test was utilized for the analysis of differences between single subjects, subject subgroups, and single electrode positions. Factors associated with sEMG signals were examined in a linear regression. Sixteen electrode positions were chosen by a simple ranking of integral values. These positions delivered significantly higher signals than the other 26 positions. Differences between single electrode positions and between test subjects were also significant. Sixteen most significant positions were identified which represent swallowing-related muscle potentials in healthy subjects.
authors: Department of Phoniatrics and Pediatric Audiology, University Hospital of Marburg, Baldingerstr. 1, 35032, Marburg, Germany.
authors: E
authors: E
authors: Zaretsky
authors: Department of Phoniatrics and Pediatric Audiology, University Hospital of Marburg, Baldingerstr. 1, 35032, Marburg, Germany.
authors: P
authors: P
authors: Pluschinski
authors: Center of Surgery, Clinic for Oral, Dental and Cosmetic Facial Surgery, University Hospital of Frankfurt/Main, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Germany.
authors: R
authors: R
authors: Sader
authors: Institute for Acoustics and Speech Communication, Faculty for Electrical Engineering and Information Technology, Technische Universität Dresden, Helmholtzstr. 10, 01069, Dresden, Germany.
authors: P
authors: P
authors: Birkholz
authors: Department of Phoniatrics and Pediatric Audiology, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
authors: C
authors: C
authors: Neuschaefer-Rube
authors: Department of Phoniatrics and Pediatric Audiology, University Hospital of Marburg, Baldingerstr. 1, 35032, Marburg, Germany. Christiane.Hey@med.uni-marburg.de.
authors: Christiane
authors: C
authors: Hey
mesh_terms: D000328:Adult; D003679:Deglutition / Q000276:immunology* / Q000502:physiology; D003680:Deglutition Disorders / Q000503:physiopathology / Q000628:therapy*; D004566:Electrodes; D004576:Electromyography / Q000295:instrumentation*; D005152:Facial Muscles; D005260:Female; D064368:Healthy Volunteers; D006801:Humans; D008297:Male; D008875:Middle Aged; D055815:Young Adult
keywords: Dysphagia; Oropharyngeal; Surface electromyography; Swallowing; sEMG