Searches for the effectiveness of the cervical auscultation to the swallowing impaired person

2010 Fiscal Year Final Research Report

• Project/Area Number: 20592465
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Social dentistry
• Research Institution: Meikai University
• Principal Investigator: SHIMIZU Yoshiaki Meikai University, 歯学部, 准教授 (90206219)
• Project Period (FY): 2008 – 2010
• Keywords: 嚥下障がい / 頸部聴診法 / 音響分析 / 食品

Research Abstract

The subjects were healthy persons who did not have 50-year-old from 20 swallowing impaired. The properties, length, acoustic pressure, breath sound of before and behind the deglutition (expired air or inspired air), and the generated timing of the swallowing sound at one time swallowing of water about 5ml were analyzed with subjects.
As a result, a short, plain swallowing sound was obtained in the deglutition of the healthy person who did not have the swallowing impaired, but both length and acoustic pressure individual variations were large. Properties of the creaking sound before and behind the deglutition were clear, and after the deglutition, breath was promptly restarted as for the generated timing. As for breath after the deglutition, there were a lot of people of the expired air. The individual variation of timing that breath after the deglutition restarts was large.