Determination of a palatal lift prosthesis to decrease levator muscle fatigue.

确定腭提升假体以减少提肌疲劳。

• 批准号: 10671825
• 负责人: WADA Takeshi
• 金额: $ 1.98万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10671825/
• 关键词: Cleft palate; velopharynx; levator veli palatini; electromyography; speech appliance; fatigue; velum; Mean power frequency; 筋疲労; 音声言語; リハビリテーション

Purpose : This research was conducted to clarify crucial factors in construction procedure of a speech appliance to decrease muscle fatigue, which prevent speakers from performing continuous speech.Methods and Subjects : 1998 : Experimental speech appliances with variable portion of a palatal lift prosthesis were constructed. Electromyography of the levator veli palatini muscle during speech tasks was recorded when each type of experimental speech appliances was removed and inserted. Five normal speakers were selected as subject in the study of 1998. 1999 : Each subjects was instructed to perform 200 productions of/pu/when respective speech appliances were inserted and removed. In each experimental condition, levator EMG was recorded. Mean power frequency (MPF) were calculated on the basis of Fast Fourier Transfer (FFT) so as to examine 1) whether s speech appliance can decrease the muscle fatigue, 2) what type of a portion of a palatal lift prosthesis can decrease most effectively.Res … More ults : 1) Change in reserve capacity for velopharyngeal function for speech, which is defined as differential activity between levator activity during speech tasks and possible maximum activity, was greater in association with alteration of length and angle of a velum portion of an experimental palatal lift prosthesis than the condition of alteration of width of the appliances. That is, when the velum is elevated up to the level of the palatal plane, reserve capacity could become greater than any other vertical positions. 2) For normal speakers, the effect of a speech appliance to decrease levator muscle fatigue during 200 continuous productions of/pu/was not different between placement and removal conditions. On the other hand, in case of speakers with cleft palate with velopharyngeal incompetence, subjects, who showed greater increase in reserve capacity for speech in association with placement, exhibited greater decrease in muscle fatigue. Conclusion : The results obtained here can suggest that a palatal lift prosthesis which can elevate the velum up to the level of the palatal plane could decrease muscle fatigue most effectively, which might enable speakers to perform continuous speech production without collapse in velopharyngeal function. The effect might be more remarkable in speakers, for whom decrease in required levator muscle activity is marked in association with placement of the appliance. Less

目的：本研究旨在阐明言语器具构造过程中的关键因素，以减少肌肉疲劳，防止说话者进行连续言语。方法和主题：1998年：构造了具有可变部分腭提升假体的实验性言语器具。当移除和插入每种类型的实验性言语器具时，记录言语任务期间提腭帆肌的肌电图。 1998 年的研究选择了 5 名正常说话者作为受试者。 1999 年：每个受试者被指示在插入和移除各自的言语器具时执行 200 次 /pu/ 的制作。在每个实验条件下，记录提肌肌电图。基于快速傅里叶变换 (FFT) 计算平均功率频率 (MPF)，以检查 1) 言语器具是否可以减轻肌肉疲劳，2) 腭部提升假体的哪种类型可以最有效地减轻肌肉疲劳。 结果：1) 言语腭咽功能储备能力的变化（定义为言语任务期间提肌活动与可能的最大活动之间的差异活动）相关性更大 与改变矫治器宽度的情况相比，改变实验性腭提升假体的软腭部分的长度和角度。也就是说，当软腭升高到腭平面的水平时，储备能力可能会比任何其他垂直位置更大。 2) 对于普通说话者，在 200 次连续发出 /pu/ 的过程中，言语器具减少提肌疲劳的效果在放置和移除条件下没有差异。另一方面，对于患有腭裂且腭咽功能不全的说话者来说，与放置相关的言语储备能力表现出更大程度增加的受试者，表现出更大程度的肌肉疲劳减轻。结论：这里获得的结果表明，可以将软腭提升至腭平面水平的腭提升假体可以最有效地减少肌肉疲劳，这可能使说话者能够连续发声而不会导致腭咽功能崩溃。对于说话者来说，这种效果可能更为显着，对于他们来说，所需提上睑肌活动的减少与器具的放置有关。较少的

项目成果

TACHIMURA T.: "Nasalance score variation in normal adult Japanese speakers of Mid-West Japanese dialect"Cleft Palate-Craniofacial Journal. 37・5(印刷中). (2000)

TACHIMURA T.：“中西部日语方言的正常成人日语使用者的鼻音评分变化”Cleft Palate-Craniofacial Journal 37・5（印刷中）。

舘村 卓: "スピーチエイドの鼻咽腔閉鎖機能賦活効果の生理学的背景-鼻咽腔閉鎖不全に伴う口蓋帆挙筋疲労とスピーチエイドによる疲労抑制-"日本口蓋裂学会雑誌. 23・4. 273-281 (1998)

Taku Tatemura：“言语辅助器的腭咽关闭功能激活作用的生理背景 - 与腭咽功能不全相关的腭提肌疲劳和言语辅助器抑制疲劳”杂志 23・4。 1998）

舘村卓,他: "スピーチエイドによる鼻咽腔閉鎖機能賦活効果の生理学的背景-健常者での軟口蓋挙上にともなう口蓋帆挙筋活動領域の変化-" 音声言語医学. 40・2(掲載予定). (1999)

Taku Tatemura 等人：“言语辅助器对腭咽闭合功能的激活作用的生理背景 - 健康受试者中与软腭抬高相关的提腭帆肌激活区域的变化 -”言语语言医学。 40, 2（出版）（1999）

舘村 卓: "スピーチエイドによる鼻咽腔閉鎖機能賦活効果の生理学的背景-健常者での軟口蓋挙上に伴なう口蓋帆挙筋活動領域の変化-"音声言語医学. 40・2. 114-119 (1999)

Takashi Tatemura：“言语辅助器对腭咽闭合功能的激活作用的生理背景 - 健康受试者中与软腭抬高相关的提上睑提肌激活区域的变化 -”言语语言医学 40・2。 114 -119 (1999)

舘村 卓: "境界線上の鼻咽腔閉鎖不全状態における内視鏡所見とnasalance scoreの乖離-Palatal Lift Prosthesis(パラタルリフト)作成過程に伴なうnasalance scoreの変化"音声言語医学. 40・2. 107-113 (1999)

Taku Tatemura：“边缘腭咽不全的内窥镜检查结果和鼻化评分之间的差异 - 与制作腭提升假体的过程相关的鼻化评分的变化”言语语言医学 40・2（1999）。