Journal article
Laryngeal Activity During Swallow, Phonation, and the Valsalva Maneuver: An Electromyographic Analysis
The Laryngoscope, Vol.106(11), pp.1351-1358
11/1996
DOI: 10.1097/00005537-199611000-00009
PMID: 8914900
Abstract
To better understand the mechanisms of airway protection during swallow, the authors of this study performed an electromyographic (EMG) analysis on the thyroarytenoid (TA) and interarytenoid (IA) muscles during a variety of tasks. The tasks included high, low, and comfortable pitch phonation, the Valsalva maneuver, saliva swallow, and 5-and 10-mL water swallows. Raw EMG signals were analyzed to obtain root mean square data, which correspond to a relative magnitude of muscle activation.
The data show that both TA and IA muscles generate a similar level of relative activation, with the greatest electrical activity observed during swallow tasks followed by the Valsalva maneuver and phonation. The duration, onset, offset, and pattern of activity during the swallowing tasks also showed close synchronization between the two muscles. These data can be used in designing therapy for voice disorders and pharyngeal dysphagia.
Details
- Title: Subtitle
- Laryngeal Activity During Swallow, Phonation, and the Valsalva Maneuver: An Electromyographic Analysis
- Creators
- Timothy M. McCulloch - University of IowaAdrienne L. Perlman - University of Illinois Urbana-ChampaignPhyllis M. Palmer - University of IowaDouglas J. Van Daele - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The Laryngoscope, Vol.106(11), pp.1351-1358
- Publisher
- John Wiley & Sons, Inc
- DOI
- 10.1097/00005537-199611000-00009
- PMID
- 8914900
- ISSN
- 0023-852X
- eISSN
- 1531-4995
- Number of pages
- 8
- Language
- English
- Date published
- 11/1996
- Academic Unit
- Radiation Oncology; Medicine Administration; Otolaryngology
- Record Identifier
- 9984312250802771
Metrics
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