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Dysphagia

, Volume 32, Issue 6, pp 759–766 | Cite as

The Influence of Oropalatal Dimensions on the Measurement of Tongue Strength

  • Laura L. Pitts
  • Julie A. G. Stierwalt
  • Carlin F. Hageman
  • Leonard L. LaPointe
Original Article

Abstract

Tongue strength is routinely evaluated in clinical swallowing evaluations since lingual weakness is an established contributor to dysphagia. Tongue strength may be clinically quantified by the maximum isometric tongue pressure (MIP) generated by the tongue against the palate; however, wide ranges in normal performance remain to be fully explained. Although orthodontic theory has long suggested a relation between lingual function and oral cavity dimensions, little attention has been given to the potential influence of oral and palatal structure(s) on healthy variance in MIP generation. Therefore, anterior and posterior tongue strength measures and oropalatal dimensions were obtained across 147 healthy adults (aged 18–88 years). Age was confirmed as a significant, independent predictor explaining approximately 10.2% of the variance in anterior tongue strength, but not a significant predictor of posterior tongue strength. However, oropalatal dimensions predicted anterior tongue strength with over three times the predictive power of age alone (p < .001). Significant models for anterior tongue strength (R 2 = .457) and posterior tongue strength (R 2 = .283) included a combination of demographic predictors (i.e., age and/or gender) and oropalatal dimensions. Palatal width, estimated tongue volume, and gender were significant predictors of posterior tongue strength (p < .001). Therefore, oropalatal dimensions may warrant consideration when accurately differentiating between pathological lingual weakness and healthy individual difference.

Keywords

Deglutition Deglutition disorders Lingual–palatal pressure Tongue strength Oropalatal dimensions 

Notes

Acknowledgements

We gratefully acknowledge Justine Rinehart, Margaret Way, Anne Delaney, Erica Murrell, Caiti Boyack, Carolyn Pellegrino, Amy Happ, Apryl Bailey, Nicole Tryon, and Grant Leacox who contributed to the success of this project.

Compliance with Ethical Standards

Conflicts of interest

No conflicts of interest or financial support to be declared.

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Copyright information

© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  • Laura L. Pitts
    • 1
    • 2
    • 3
    • 4
  • Julie A. G. Stierwalt
    • 4
    • 5
  • Carlin F. Hageman
    • 1
  • Leonard L. LaPointe
    • 4
  1. 1.245 CACUniversity of Northern IowaCedar FallsUSA
  2. 2.Northwestern UniversityChicagoUSA
  3. 3.Shirley Ryan AbilityLabChicagoUSA
  4. 4.Florida State UniversityTallahasseeUSA
  5. 5.Mayo Clinic at RochesterRochesterUSA

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