Construction of estimation methods for voluntary control movement of the lips and the factors affecting lip-control ability in the elderly

2015 Fiscal Year Final Research Report

• Project/Area Number: 24390440
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Prosthetic dentistry
• Research Institution: Matsumoto Dental University
• Principal Investigator: Masuda Yuji 松本歯科大学, 総合歯科医学研究所, 教授 (20190366)
• Co-Investigator(Kenkyū-buntansha): NARITA Noriyuki 日本大学, 歯学部, 准教授 (10155997) ; ONO Takahiro 新潟大学, 医歯学系, 教授 (30204241) ; YAMAGUCHI Masato 松本歯科大学, 歯学部, 助教 (30410434) ; YAMAMURA Kensuke 新潟大学, 医歯学系, 教授 (90272822)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Keywords: 口唇 / 高齢者 / 脳血流 / 多方位口唇閉鎖力 / ビジュアルフィードバック

Outline of Final Research Achievements

Voluntary control movement of the lips is important as a lip-function to enhance the QOL, and it is necessary to clarify the property of voluntary control movement of the lips. In this study, we can estimate lip-control ability by a system using a visual feedback which we constructed for this study. We investigated the lip-control ability in the elderly and the brain blood flow during voluntary control movement of the lips. From our results, in the elderly the lip-control ability was not influenced by directions of lip-force or gender. In older males the lip-control ability was lower than that in younger males. The cortical activity of a large area was involved in the voluntary control movement of the lips. It is suggested the importance of maintaining voluntary lip-control ability in the elderly.

Free Research Field

口腔生理学