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The Characteristics of Snoring at Pharyngeal Anatomy in Natural Sleep: Snoring Duration

Published online by Cambridge University Press:  22 March 2012

J.-F. Yu ,
Y.-S. Chen  and
H.-Y. Li
J.-F. Yu
Affiliation:
Graduate Institute of Medical Mechatronics, Chang Gung University, Taoyuan, Taiwan 33302, R.O.C.
Y.-S. Chen
Affiliation:
Taiouan Interdisciplinary Otolaryngology Laboratory, Chang Gung University, Taoyuan, Taiwan 33302, R.O.C.
H.-Y. Li*
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital Taoyuan, Taiwan 33378, R.O.C.
*
*Corresponding author (dr.jfyu@gmail.com)
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Abstract

The present study utilized audio recordings of snoring during natural sleep to analyze characteristics related to the snoring duration at the soft palate, epiglottis, and tongue base. 10 subjects were recruited for the study, with an average age of 23.7 years. These audio files were then used to analyze the characteristics of snoring duration at the soft palate, epiglottis, and tongue base responsible for sound generation. Findings indicated that snoring duration was 3.7 seconds at the soft palate, 2.2 seconds at the epiglottis and 1.29 seconds at the tongue. Since the soft palate is the softest structure of the three, snoring sound by vibration was most easily induced at this structure, leading to the longest snoring duration. This was followed by the epiglottis and the tongue base respectively. Of the 10 subjects, 6 had BMI in the overweight range, and snoring durations for these individuals were seen to be lengthened by 0.13 seconds, with the tongue base snoring duration lengthened by 0.11 seconds but unchanged for the epiglottis. Prior studies from this laboratory have established a non-invasive system for measuring snoring. This can be used to analyze the sound frequency, amplitude and duration of snoring. Snoring duration was found to be the longest at the soft palate, followed by the epiglottis and tongue base in the present investigation. Clinically, this finding has implications in snoring assessments prior to uvula-palato-pharyngoplasty procedures. Snoring duration may also be used as a parameter in post-operative monitoring.

Keywords

Snoring durationSnoring soundSnoring siteBMI
Type
Articles
Information
Journal of Mechanics , Volume 28 , Issue 1 , March 2012 , pp. 91 - 95
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2012

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