Occlusal force pattern during rhythmic human tapping movement.
Occlusal force pattern during rhythmic human tapping movement.
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有节奏的人体敲击运动期间的咬合力模式。
DOI：
10.1111/j.1365-2842.1991.tb00056.x
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发表时间：
1991
影响因子：
2.9
通讯作者：
S. Kasai
中科院分区：
文献类型：
--
作者：
Y. Munakata;M. Tsuji;S. Kasai
在正常受试者中分析了与有节奏的敲击运动表现相关的动态咬合力模式，指导他们以 2、2.5、3.3 和 5 Hz 四种频率进行敲击运动，力的大小尽可能恒定。口腔内定制设备记录的咬合力显示出可分为两个分量的三相模式，并且在较慢的敲击运动中该模式更加清晰。在这两个分量中，无论攻丝频率如何变化，第一个分量都相对稳定，而第二个分量高度依赖于攻丝周期持续时间，并且其持续时间随着攻丝频率的增加而缩短。此外，咬合力阶段的变化与一对表面电极同时记录的咬肌肌电图的突发持续时间之间存在显着相关性。基于这些发现，有人提出敲击节律是通过咬合动力阶段的持续时间和相关的下颌提升肌活动来调节的。
The dynamic occlusal force patterns associated with the performance of rhythmic tapping movement were analysed in normal subjects, who were instructed to make tapping movements at four frequencies, 2, 2.5, 3.3 and 5 Hz, with as constant a magnitude of force as possible. The occlusal force recorded by an intra-oral customized device showed a triphasic pattern which could be divided into two components, and this pattern was more clearly defined during slower tapping movements. Of the two components, the first was relatively stable, regardless of changes in tapping frequency, while the second was highly dependent on the tapping cycle duration, and its duration was shortened with increases in tapping frequency. Furthermore, there was a significant correlation between the changes in the occlusal power phase and those in the burst duration of the masseter EMG simultaneously recorded by a pair of surface electrodes. On the basis of these findings, it is suggested that the tapping rhythm is modulated by the duration of the occlusal power phase and the associated jaw elevator muscle activity.