Physiological variability in the deglutition literature: hyoid and laryngeal kinematics
Sonja M Molfenter, Catriona M Steele, Sonja M Molfenter, Catriona M Steele
Abstract
A literature review was conducted on hyoid and/or laryngeal displacement during swallowing in healthy populations according to several inclusion criteria. Anterior and superior displacement measures of both structures from previously published studies were compiled for meta-analysis. Results showed a large degree of variability across studies for each structure and plane of movement. Potential sources of variation were identified, including statistical, methodological, stimulus-related, and participant-related sources.
© Springer Science+Business Media, LLC 2010
Figures
![Figure 1](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/3756522/bin/nihms503326f1.jpg)
Mean and 95% confidence intervals for anterior hyoid excursion from the 13 studies that met inclusion criteria (ml = milliliters, mm = millimeters).
![Figure 2](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/3756522/bin/nihms503326f2.jpg)
Mean and 95% confidence intervals for superior hyoid excursion from the 13 studies that met inclusion criteria (ml = milliliters, mm = millimeters)
![Figure 3](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/3756522/bin/nihms503326f3.jpg)
Mean and 95% confidence intervals for anterior laryngeal excursion from the 5 studies that met inclusion criteria (ml = milliliters, mm = millimeters).
![Figure 4](https://www.ncbi.nlm.nih.gov/pmc/articles/instance/3756522/bin/nihms503326f4.jpg)
Mean and 95% confidence intervals for superior laryngeal excursion from the 5 studies that met inclusion criteria (ml = milliliters, mm = millimeters).
Source: PubMed