Characterization of Swallowing Sound: Preliminary Investigation of Normal Subjects.

ABSTRACT:

Objective

The purpose of this study was to characterize the swallowing sound and identify the process of sound generation during swallowing in young healthy adults.

Methods

Thirty-three healthy volunteers were enrolled and allocated into three experimental groups. In experiment 1, a microphone was attached to one of eight cervical sites in 20 subjects, participants swallowed 5 ml water, and the sound waveform was recorded. In experiment 2, 10 subjects swallowed either 0, 5, 10, or 15 ml water during audio recording. In addition, participants consumed the 5 ml bolus in two different cervical postures. In experiment 3, the sound waveform and videofluoroscopy were simultaneously recorded while the three participants consumed 5 ml iopamidol solution. The duration and peak intens

SUBMITTER: Honda T 

PROVIDER: S-EPMC5154546 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature