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Related Concept Videos

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The human tongue is a fascinating and complex organ, responsible for various essential functions such as swallowing, speech, and taste. It is also subject to various conditions and diseases. In this article, we delve into the anatomy of the tongue, its roles, and some common conditions that can affect it.
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Related Experiment Video

Updated: Nov 23, 2025

In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue
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In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue

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Improper sitting posture while eating adversely affects maximum tongue pressure.

Mineka Yoshikawa1, Kanako Nagakawa2, Reiko Tanaka2

  • 1Department of Advanced Prosthodontics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.

Journal of Dental Sciences
|January 1, 2021
PubMed
Summary

Eating posture significantly impacts tongue pressure, a key factor in swallowing. Optimal postures in bed and wheelchair enhance tongue pressure in both healthy adults and elderly individuals requiring care.

Keywords:
Eating postureElderlySwallowingTongueTongue pressure

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Area of Science:

  • Swallowing biomechanics
  • Geriatric nutrition
  • Clinical kinesiology

Background:

  • Limited research exists on how lower extremity positioning affects swallowing.
  • Neck and trunk positioning during eating are well-studied, but the role of lower extremities is less understood.

Purpose of the Study:

  • To investigate the effect of eating postures on tongue pressure.
  • To compare tongue pressure in different bed and wheelchair positions.

Main Methods:

  • 43 healthy adults and 33 elderly individuals participated.
  • Tongue pressure was measured in four postures: two in bed (good/poor) and two in a reclining wheelchair (good/poor).

Main Results:

  • Healthy participants showed significantly higher tongue pressure in good postures (bed/wheelchair) compared to poor ones.
  • Elderly participants also exhibited significantly higher tongue pressure in good postures (bed/wheelchair) versus poor ones.

Conclusions:

  • Eating posture is a critical factor influencing tongue pressure.
  • Optimizing posture may improve swallowing function, particularly in elderly individuals.