The Relationship Between Submental Surface Electromyography and Hyo-Laryngeal Kinematic Measures of Mendelsohn Maneuver Duration Purpose The Mendelsohn Maneuver (MM) is a commonly prescribed technique that is taught to individuals with dysphagia to improve swallowing ability. Due to cost and safety concerns associated with videofluoroscopy (VFS) use, submental surface electromyography (ssEMG) is commonly used in place of VFS to train the MM in clinical and ... Research Article
Research Article  |   December 01, 2015
The Relationship Between Submental Surface Electromyography and Hyo-Laryngeal Kinematic Measures of Mendelsohn Maneuver Duration
 
Author Affiliations & Notes
  • Alba M. Azola
    Johns Hopkins University, Baltimore, MD
  • Lindsey R. Greene
    Johns Hopkins University, Baltimore, MD
  • Isha Taylor-Kamara
    Johns Hopkins University, Baltimore, MD
  • Phoebe Macrae
    Johns Hopkins University, Baltimore, MD
  • Cheryl Anderson
    Johns Hopkins University, Baltimore, MD
  • Ianessa A. Humbert
    Johns Hopkins University, Baltimore, MD
  • Disclosure: The authors have declared that no competing interests existed at the time of publication.
    Disclosure: The authors have declared that no competing interests existed at the time of publication. ×
  • Correspondence to Ianessa A. Humbert, who is now at College of Public Health & Health Professions, University of Florida, Gainesville: ihumbert@phhp.ufl.edu
  • Editor: Jody Kreiman
    Editor: Jody Kreiman×
  • Associate Editor: Caryn Easterling
    Associate Editor: Caryn Easterling×
Article Information
Swallowing, Dysphagia & Feeding Disorders / Special Populations / Speech, Voice & Prosody / Speech / Research Articles
Research Article   |   December 01, 2015
The Relationship Between Submental Surface Electromyography and Hyo-Laryngeal Kinematic Measures of Mendelsohn Maneuver Duration
Journal of Speech, Language, and Hearing Research, December 2015, Vol. 58, 1627-1636. doi:10.1044/2015_JSLHR-S-14-0203
History: Received July 26, 2014 , Revised March 6, 2015 , Accepted June 3, 2015
 
Journal of Speech, Language, and Hearing Research, December 2015, Vol. 58, 1627-1636. doi:10.1044/2015_JSLHR-S-14-0203
History: Received July 26, 2014; Revised March 6, 2015; Accepted June 3, 2015
Web of Science® Times Cited: 2

Purpose The Mendelsohn Maneuver (MM) is a commonly prescribed technique that is taught to individuals with dysphagia to improve swallowing ability. Due to cost and safety concerns associated with videofluoroscopy (VFS) use, submental surface electromyography (ssEMG) is commonly used in place of VFS to train the MM in clinical and research settings. However, it is unknown whether ssEMG accurately reflects the prolonged hyo-laryngeal movements required for execution of the MM. The primary goal of this study was to examine the relationship among ssEMG duration, duration of laryngeal vestibule closure, and duration of maximum hyoid elevation during MM performance.

Method Participants included healthy adults and patients with dysphagia due to stroke. All performed the MM during synchronous ssEMG and VFS recording.

Results Significant correlations between ssEMG duration and VFS measures of hyo-laryngeal kinematic durations during MM performance ranged from very weak to moderate. None of the correlations in the group of stroke patients reached statistical significance.

Conclusion Clinicians and researchers should consider that the MM involves novel hyo-laryngeal kinematics that may be only moderately represented with ssEMG. Thus, there is a risk that these target therapeutic movements are not consistently being trained.

Acknowledgment
This research was supported by National Institute on Deafness and Other Communication Disorders Grant 1K23DC010776-01, awarded to Ianessa A. Humbert for years 2009–2014.
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