Lingual Propulsive Pressures Across Consistencies Generated by the Anteromedian and Posteromedian Tongue by Healthy Young Adults PurposeIn the present study, the authors investigated lingual propulsive pressures generated in the normal swallow by the anterior and posterior lingual segments for various consistencies and maximum isometric tasks.MethodLingual pressures for saliva, thin, and honey-thick liquid boluses were measured via the Iowa Oral Performance Instrument (IOPI Medical, Carnation, WA) at ... Article
Article  |   June 01, 2012
Lingual Propulsive Pressures Across Consistencies Generated by the Anteromedian and Posteromedian Tongue by Healthy Young Adults
 
Author Affiliations & Notes
  • Laura L. Gingrich
    Florida State University, Tallahassee
  • Julie A. G. Stierwalt
    Florida State University, Tallahassee
  • Carlin F. Hageman
    University of Northern Iowa, Cedar Falls
  • Leonard L. LaPointe
    Florida State University, Tallahassee
  • Correspondence to Laura L. Gingrich who is now with the Rehabilitation Institute of Chicago, Department of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University: lgingrich@ric.org
  • Editor: Anne Smith
    Editor: Anne Smith×
  • Associate Editor: Caryn Easterling
    Associate Editor: Caryn Easterling×
Article Information
Speech
Article   |   June 01, 2012
Lingual Propulsive Pressures Across Consistencies Generated by the Anteromedian and Posteromedian Tongue by Healthy Young Adults
Journal of Speech, Language, and Hearing Research, June 2012, Vol. 55, 960-972. doi:10.1044/1092-4388(2011/10-0357)
History: Received December 18, 2010 , Accepted October 4, 2011
 
Journal of Speech, Language, and Hearing Research, June 2012, Vol. 55, 960-972. doi:10.1044/1092-4388(2011/10-0357)
History: Received December 18, 2010; Accepted October 4, 2011
Web of Science® Times Cited: 13

PurposeIn the present study, the authors investigated lingual propulsive pressures generated in the normal swallow by the anterior and posterior lingual segments for various consistencies and maximum isometric tasks.

MethodLingual pressures for saliva, thin, and honey-thick liquid boluses were measured via the Iowa Oral Performance Instrument (IOPI Medical, Carnation, WA) at both anteromedian and posteromedian lingual segments of 62 healthy participants, ages 18–34 years (30 men, 32 women).

ResultsA repeated-measures analysis of variance revealed that all lingual swallowing pressures were significantly greater at the anteromedian segment than at the posteromedian segment. Gender was not a significant factor; however, women exhibited greater swallowing pressures across all conditions. Lingual pressures increased as bolus viscosity increased. No significant interactions existed. Analysis of a subset of 30 participants revealed that men exhibited greater maximal isometric pressure at the anteromedian segment than women, with no significant gender difference at the posteromedian segment. A significantly higher percentage of maximum isometric tongue pressure was exerted by the posteromedian tongue than by the anteromedian tongue.

ConclusionFindings suggest that greater amplitudes of lingual pressures are generated during normal swallowing at the anteromedian lingual segment; however, a greater percentage of maximum isometric tongue pressure was exerted by the posteromedian lingual segment, suggesting increased effort by the posterior tongue during bolus propulsion.

Acknowledgment
We would like to express our appreciation to Paul Roberson for assistance with data collection.
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