Dynamics of posterior tongue during pronunciation and voluntary tongue lift movement in young adults
Dynamics of posterior tongue during pronunciation and voluntary tongue lift movement in young adults
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青年人发音和自主举舌运动时舌后部的动态
DOI：
10.1111/j.1365-2842.2011.02283.x
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发表时间：
2012
影响因子：
2.9
通讯作者：
Minagi S
中科院分区：
文献类型：
--
作者：
Shirahige C;Oki K;Morimoto Y;Oisaka N;Minagi S
舌头后部接触上颚的抬升运动，是执行吞咽和说话等生理功能的必要条件，是一个难以客观评价的重要现象。本研究的目的是建立一种新的模式来评估舌头的提升功能，特别是在舌头的后半部，并阐明在正常受试者的舌头的动态特性。23名健康志愿者（9名男性，14名女性，平均年龄27.6岁）参加了这项研究。我们开发了一种新的装置，可以以非侵入性的方式评估舌头后部的上下运动。实验任务如下：(i) /a/发音1秒，然后是/ka/发音（a‐ka任务）；(ii) /a/发音1秒，然后是/ga/发音（a‐ga任务）；(iii) /a/发音1秒，然后是舌头后部的主动俯卧运动（a‐lift任务）。a‐ga任务的最大向上速度大于a‐ka任务（P< 0.05）。在三个任务中，a‐举舌任务的舌举幅度最大，且a‐举舌任务的舌举幅度大于a‐举舌任务（P< 0.05）。这项研究表明，使用这种新设备可以以非侵入性的方式实现舌头后部运动的精确量化，这将有助于发音和/或吞咽的康复。
The lifting‐up movement of the posterior part of the tongue to touch the palate, which is a requirement for performing physiological functions such as deglutition and speech, is an important phenomenon that is difficult to objectively evaluate. The purpose of this study was to develop a new modality to evaluate the tongue‐lifting function, especially in the posterior part of the tongue, and to elucidate the dynamic properties of the tongue in normal subjects. Twenty‐three healthy volunteers (9 men and 14 women; mean age, 27·6 years) participated in this study. A new device was developed that could evaluate the up‐down movement of the posterior part of the tongue in a non‐invasive manner. The experimental tasks were as follows: (i) /a/ pronunciation for 1 s followed by /ka/ pronunciation (a‐ka task), (ii) /a/ pronunciation for 1 s followed by /ga/ pronunciation (a‐ga task) and (iii) /a/ pronunciation for 1 s followed by a voluntary push‐up movement of the posterior part of the tongue (a‐lift task). Maximum upward velocity in the a‐ga task was larger than that in the a‐ka task (P< 0·05). The a‐lift task showed the highest tongue lift range among the three tasks, and the a‐ga task showed a higher range than that of the a‐ka task (P< 0·05). This study revealed that precise quantification of the motility of the posterior part of the tongue, which would be useful in rehabilitation of articulation and/or swallowing, could be achieved using this new device in a non‐invasive manner.