Electromyography of swallowing with fine wire intramuscular electrodes in healthy human: Activation sequence of selected hyoid muscles

Haruhi Inokuchi, Marlis Gonzalez Fernandez, Koichiro Matsuo, Martin B Brodsky, Mitsumasa Yoda, Hiroshige Taniguchi, Hideto Okazaki, Takashi Hiraoka, Jeffrey B. Palmer

Research output: Contribution to journalArticle

Abstract

Few studies have reported the activation sequence of the swallowing muscles in healthy human participants. We examined temporal characteristics of selected hyoid muscles using fine wire intramuscular electromyography (EMG). Thirteen healthy adults were studied using EMG of the anterior belly of digastric (ABD), geniohyoid (GH), sternohyoid (SH), and masseter (MA, with surface electrodes) while ingesting thin liquid, banana, tofu, and cookie (3 trials each). Onset timing was measured from rectified and integrated EMG. Data were analyzed using repeated-measures ANOVA with Bonferroni correction. When drinking thin liquid, MA, GH, and ABD were activated almost simultaneously, but SH was activated later (using GH onset as 0 s, MA -0.07 (-0.20 to 0.17) second [median (interquartile range)]; ABD 0.00 (-0.10 to 0.07) second; SH 0.17 (0.02 to 0.37) second; P

Original languageEnglish (US)
Pages (from-to)713-721
Number of pages9
JournalDysphagia
Volume29
Issue number6
DOIs
StatePublished - Aug 21 2014

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Keywords

  • Deglutition
  • Deglutition disorders
  • Electrodes
  • Electromyography
  • Food
  • Rheology
  • Spatiotemporal analysis

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Gastroenterology
  • Speech and Hearing

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