Related Experiment Video
Updated: Sep 30, 2025
14:13
Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
Published on: May 6, 2014
18.4K
Hyoid displacement patterns in healthy swallowing.
Maria Regina Macedo Alves1, Isabella Christina Oliveira Neto1, Guilherme Maia Zica1
1Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Einstein (Sao Paulo, Brazil)
|March 16, 2022
Summary
Seven hyoid bone displacement patterns were identified in healthy adults during swallowing. The most common pattern was horizontal, with variations between sexes and consistent across different food consistencies.
Area of Science:
- Anatomy
- Physiology
- Biomechanics
Background:
- The hyoid bone's role in swallowing is crucial for airway protection and bolus transit.
- Understanding normal hyoid bone displacement is essential for diagnosing dysphagia.
Purpose of the Study:
- To characterize hyoid bone displacement patterns in healthy adults across various food consistencies.
- To establish normative data for hyoid bone movement during deglutition.
Main Methods:
- Analysis of 201 videofluoroscopy swallowing exams from 67 healthy adults and elderly individuals.
- Descriptive analysis to identify and classify hyoid bone displacement patterns.
Main Results:
- Seven distinct hyoid bone displacement patterns (H1-H7) were identified.
- The most frequent pattern was H2 (short vertical, long horizontal displacement).
- Hyoid displacement patterns showed variations between males and females and remained consistent across thin liquid, paste, and solid food consistencies.
Conclusions:
- Seven normative patterns of hyoid bone displacement during swallowing have been described.
- The horizontal displacement pattern (H2) is most common in healthy adults.
- Hyoid bone displacement patterns are consistent across different bolus consistencies but vary between sexes.
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