Characterization of Swallowing Sound: Preliminary Investigation of Normal Subjects

• Published in: PloS one Vol. 11; no. 12; p. e0168187
• Main Authors: Honda, Tsuyoshi, Baba, Takuro, Fujimoto, Keiko, Goto, Takaharu, Nagao, Kan, Harada, Masafumi, Honda, Eiichi, Ichikawa, Tetsuo
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 13.12.2016; Public Library of Science (PLoS)
• Subjects: Acoustic properties; Acoustics; Activities of daily living; Adult; Adults; Age; Biology and Life Sciences; Contrast media; Deglutition - physiology; Deglutition Disorders - diagnosis; Dysphagia; Epiglottis; Epiglottis - physiology; Esophagus; Esophagus - physiology; Experiments; Female; Fluoroscopy; Gender; Head & neck cancer; Healthy Volunteers; Humans; Hyoid bone; Hyoid Bone - physiology; Investigations; Iopamidol - administration & dosage; Larynx; Larynx - physiology; Male; Medicine and Health Sciences; Older people; Pharynx; Pharynx - physiology; Physical Sciences; Posture; Sound; Sound generation; Swallowing; Tongue; Validity; Water - administration & dosage; Waveforms; Young Adult; Japan

The purpose of this study was to characterize the swallowing sound and identify the process of sound generation during swallowing in young healthy adults. Thirty-three healthy volunteers were enrolled and allocated into three experimental groups. In experiment 1, a microphone was attached to one of...