Lingual propulsive pressures across consistencies generated by the anteromedian and posteromedian tongue by healthy young adults

Laura L. Gingrich, Julie A.G. Stierwalt, Carlin F. Hageman, Leonard L. LaPointe

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Purpose: In 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. Method: Lingual 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).Results: A 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. Conclusion: Findings 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.

Original languageEnglish (US)
Pages (from-to)960-972
Number of pages13
JournalJournal of Speech, Language, and Hearing Research
Volume55
Issue number3
DOIs
StatePublished - Jun 1 2012

Keywords

  • Anterior
  • Bolus propulsion
  • Lingual pressures
  • Posterior
  • Tongue

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language
  • Speech and Hearing

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