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Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects

PURPOSE: This study aimed to examine the relationship between jaw opening force and hyoid bone dynamics and resting position in elderly individuals based on gender. SUBJECTS AND METHODS: Subjects were 36 healthy elderly individuals aged ≥65 years without dysphagia (16 men and 20 women; mean age 75.5...

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Autores principales: Shinozaki, Hiromichi, Tohara, Haruka, Matsubara, Mariko, Inokuchi, Nobuhiro, Yamazaki, Yasuhiro, Nakane, Ayako, Wakasugi, Yoko, Minakuchi, Shunsuke
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove Medical Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5384736/
https://www.ncbi.nlm.nih.gov/pubmed/28408812
http://dx.doi.org/10.2147/CIA.S130946
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author Shinozaki, Hiromichi
Tohara, Haruka
Matsubara, Mariko
Inokuchi, Nobuhiro
Yamazaki, Yasuhiro
Nakane, Ayako
Wakasugi, Yoko
Minakuchi, Shunsuke
author_facet Shinozaki, Hiromichi
Tohara, Haruka
Matsubara, Mariko
Inokuchi, Nobuhiro
Yamazaki, Yasuhiro
Nakane, Ayako
Wakasugi, Yoko
Minakuchi, Shunsuke
author_sort Shinozaki, Hiromichi
collection PubMed
description PURPOSE: This study aimed to examine the relationship between jaw opening force and hyoid bone dynamics and resting position in elderly individuals based on gender. SUBJECTS AND METHODS: Subjects were 36 healthy elderly individuals aged ≥65 years without dysphagia (16 men and 20 women; mean age 75.5 years, range 65–88 years). Videofluorographic images during the swallowing of 10 mL of 40% (w/v) barium sulfate were obtained and the degrees of anterior, superior, and hypotenuse displacements of the hyoid bone and maximum/resting hyoid position were evaluated. Jaw opening force was measured three times using a jaw opening force sthenometer; the mean of these three measurements was used for analysis. RESULTS: In men, there was a positive correlation between jaw opening force and resting hyoid position and negative correlations among all the degrees of anterior, superior, and hypotenuse displacements of the hyoid bone. In women, there was no statistically significant correlation between jaw opening force and any of the measurement items. There was no statistically significant correlation between jaw opening force and maximum hyoid position in either men or women. CONCLUSION: Our findings suggest that low jaw opening force leads to low resting hyoid position only in elderly men, and a lower hyoid position in healthy elderly men results in a larger total amount of hyoid displacement during swallowing. Moreover, a maximum hyoid position in healthy individuals of either gender does not differ depending on their jaw opening force.
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spelling pubmed-53847362017-04-13 Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects Shinozaki, Hiromichi Tohara, Haruka Matsubara, Mariko Inokuchi, Nobuhiro Yamazaki, Yasuhiro Nakane, Ayako Wakasugi, Yoko Minakuchi, Shunsuke Clin Interv Aging Original Research PURPOSE: This study aimed to examine the relationship between jaw opening force and hyoid bone dynamics and resting position in elderly individuals based on gender. SUBJECTS AND METHODS: Subjects were 36 healthy elderly individuals aged ≥65 years without dysphagia (16 men and 20 women; mean age 75.5 years, range 65–88 years). Videofluorographic images during the swallowing of 10 mL of 40% (w/v) barium sulfate were obtained and the degrees of anterior, superior, and hypotenuse displacements of the hyoid bone and maximum/resting hyoid position were evaluated. Jaw opening force was measured three times using a jaw opening force sthenometer; the mean of these three measurements was used for analysis. RESULTS: In men, there was a positive correlation between jaw opening force and resting hyoid position and negative correlations among all the degrees of anterior, superior, and hypotenuse displacements of the hyoid bone. In women, there was no statistically significant correlation between jaw opening force and any of the measurement items. There was no statistically significant correlation between jaw opening force and maximum hyoid position in either men or women. CONCLUSION: Our findings suggest that low jaw opening force leads to low resting hyoid position only in elderly men, and a lower hyoid position in healthy elderly men results in a larger total amount of hyoid displacement during swallowing. Moreover, a maximum hyoid position in healthy individuals of either gender does not differ depending on their jaw opening force. Dove Medical Press 2017-04-03 /pmc/articles/PMC5384736/ /pubmed/28408812 http://dx.doi.org/10.2147/CIA.S130946 Text en © 2017 Shinozaki et al. This work is published and licensed by Dove Medical Press Limited The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.
spellingShingle Original Research
Shinozaki, Hiromichi
Tohara, Haruka
Matsubara, Mariko
Inokuchi, Nobuhiro
Yamazaki, Yasuhiro
Nakane, Ayako
Wakasugi, Yoko
Minakuchi, Shunsuke
Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects
title Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects
title_full Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects
title_fullStr Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects
title_full_unstemmed Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects
title_short Relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects
title_sort relationship between jaw opening force and hyoid bone dynamics in healthy elderly subjects
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5384736/
https://www.ncbi.nlm.nih.gov/pubmed/28408812
http://dx.doi.org/10.2147/CIA.S130946
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