An Analysis of Lingual Contribution to Submental Surface Electromyographic Measures and Pharyngeal Pressure During Effortful Swallow
Abstract
Huckabee M-L, Steele CM. An analysis of lingual contribution to submental surface electromyographic measures and pharyngeal pressure during effortful swallow.
Objective
To evaluate the influence of tongue-to-palate pressures on submental muscle contraction and oral and pharyngeal pressure dynamics during effortful swallowing maneuver.
Design
Comparative analysis of 2 task strategies on biomechanic measures of swallowing.
Setting
Research laboratory in a free-standing research facility.
Participants
Consecutive volunteer sample of 20 healthy participants (age range, 20−35y).
Interventions
Not applicable.
Main Outcome Measures
Peak amplitude of submental surface electromyography and orolingual and pharyngeal manometric pressure at 4 locations.
Results
General linear model analysis of variance revealed statistically significant greater amplitudes for the tongue emphasis condition of effortful swallow at all measured sensors (P<.004).
Conclusions
Tongue-to-palate emphasis during execution of effortful swallowing increases amplitudes of submental surface electromyography, orolingual pressure, and upper pharyngeal pressure to a greater degree than a strategy of inhibiting tongue-to-palate emphasis.
aDepartment of Communication Disorders, University of Canterbury, and Van der Veer Institute for Parkinson’s and Brain Research, Christchurch, New Zealand
bToronto Rehabilitation Institute, and the Graduate Department of Speech-Language Pathology, University of Toronto, Toronto, ON, Canada
Reprint requests to Maggie-Lee Huckabee, PhD, Van der Veer Institute, 16 St Asaph St, Christchurch, New Zealand
No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit upon the authors or upon any organization with which the authors are associated.
ABSTRACT