Levator veli palatini muscle activity in relation to intraoral air pressure variation.
Levator veli palatini muscle activity in relation to intraoral air pressure variation.
复制标题
提腭帆肌活动与口内气压变化的关系。
DOI：
10.1044/jshr.3706.1260
复制
发表时间：
1994
期刊：
影响因子：
--
通讯作者：
Moon,JB
中科院分区：
文献类型：
--
作者：
Kuehn,DP;Moon,JB
这项调查的目的是研究非言语任务（吹气）时提腭帆肌的操作范围，并确定言语任务中提肌活动的范围。十名没有言语或腭咽异常的成年受试者参与了研究。言语的提肌肌电图活动发生在吹气总范围的较低区域。在随后涉及 4 名受试者的两个实验中，发现除了出于空气动力学目的而在腭咽闭合方面的作用之外，总体努力可能对提肌活动产生了很小的影响。主要实验的结果与疲劳阈值的概念相关，因为它可能影响腭咽控制机制。
The purpose of this investigation was to study the operating range of the levator veli palatini muscle for a nonspeech task (blowing) and to determine where in that range levator activity for speech lies. Ten adult subjects without speech or velopharyngeal abnormalities participated. Levator EMG activity for speech occurred in the lower region of the total range for blowing. In two subsequent experiments involving a subset of 4 subjects, it was found that overall effort may have had a small effect on levator activity apart from its role in velopharyngeal closure for aerodynamic purposes. The results of the main experiment are discussed in relation to the concept of threshold of fatigue as it may influence velopharyngeal control mechanisms.