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European Archives of Oto-Rhino-Laryngology

, Volume 274, Issue 2, pp 989–995 | Cite as

Identification of the most significant electrode positions in electromyographic evaluation of swallowing-related movements in humans

  • E. Zaretsky
  • P. Pluschinski
  • R. Sader
  • P. Birkholz
  • C. Neuschaefer-Rube
  • Christiane Hey
Head and Neck

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.

Keywords

sEMG Surface electromyography Swallowing Oropharyngeal Dysphagia 

Notes

Compliance with ethical standards

Financial disclosure information

None.

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • E. Zaretsky
    • 1
  • P. Pluschinski
    • 1
  • R. Sader
    • 2
  • P. Birkholz
    • 3
  • C. Neuschaefer-Rube
    • 4
  • Christiane Hey
    • 1
  1. 1.Department of Phoniatrics and Pediatric AudiologyUniversity Hospital of MarburgMarburgGermany
  2. 2.Center of Surgery, Clinic for Oral, Dental and Cosmetic Facial SurgeryUniversity Hospital of Frankfurt/MainFrankfurt/MainGermany
  3. 3.Institute for Acoustics and Speech Communication, Faculty for Electrical Engineering and Information TechnologyTechnische Universität DresdenDresdenGermany
  4. 4.Department of Phoniatrics and Pediatric AudiologyUniversity Hospital of AachenAachenGermany

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