2024-03-29T12:58:56Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00003785
2022-12-15T03:36:51Z
423:424:425
453:454
Simultaneous Contraction Mechanics and Coordination of Perioral Muscles
口唇周囲における複数筋同時収縮の力学と協調性
小浦方, 格
43
原, 利昭
45361
Biomechanics
Muscle and Skeleton
Bio Motion
Lip
Perioral Muscle
Motor Control
Surface EMG
Brass Instrument Performance
Myofunctional Therapy
Orbicularis oris superior (OOS), orbicularis oris inferior (OOI), levator anguli oris (LAO), depressor anguli oris (DAO),and mentalis (Ment) are considered as typical perioral muscles that contribute to the force and pressure occurence in and around lip aperture. This study presents the experimental and analytical results that show correlationships between eledrical muscle activities and mechanical parameters on bilabial closing force, puckering force, POM (perioral muscle) value and so forth. Besides, zero-lag correlation coefficients between rectified and smoothed SEMG signals of LAO and DAO was constantly higher than other muscle combinations including OOS-OOI combination considered to be most closely related with lip movement. Among lip tasks, prominently high correlation between LAO and DAO was shown when subjects tried to close their lip bilabially at principally distal part. Consequently authors succeeded to prove the great importance of the coordination between LAO and DAO for producing bilabial consonants, drinking and eating, pooling saliva in oral cavity, and others, while the applicability of POM meter to myofunctional therapy is obscured.
journal article
日本機械学会
2003-05
application/pdf
日本機械学会論文集. C編
681
69
1366
1373
日本機械学会論文集. C編
AN00187463
03875024
https://niigata-u.repo.nii.ac.jp/record/3785/files/9_0167.pdf
jpn
http://ci.nii.ac.jp/naid/110002379003
日本機械学会
本文データは学会の許諾に基づくCiNiiからの複製である