Reproducibility of mandibular motion and muscle activity levels using a commercial computer recording system.
Reproducibility of mandibular motion and muscle activity levels using a commercial computer recording system.
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使用商业计算机记录系统可再现下颌运动和肌肉活动水平。
DOI：
10.1016/0022-3913(92)90344-a
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Edward Ellis
中科院分区：
文献类型：
--
作者：
G. Throckmorton;T. Teenier;Edward Ellis
商业计算机记录系统（BioPak）的准确性和再现性进行了测试，在记录下颌运动和肌肉活动水平（EMG）。使用滑动卡尺测试下颌运动测量的准确性。用已知振幅和频率的正弦波校准信号检查肌肉活动水平的准确性。使用5名对照受试者进行运动和EMG再现，每个受试者在3个不同的日子进行测试。计算机测量的运动被发现需要校正的非线性开口超过45毫米。最大的自愿偏移被发现是更可重复的咀嚼过程中的运动比。然而，在开放过程中的横向偏差受到磁铁方向的强烈影响，并在试验之间变化很大。由于对信号的高频成分处理不当，肌电记录失真，并且在试验之间变化很大。这项研究表明，BioPak系统可能会显示在一些措施的下颌运动和肌电图水平的患者没有发生变化的变化。
A commercial computer recording system (BioPak) was tested for its accuracy and reproducibility in recording mandibular motion and muscle activity levels (EMG). Accuracy of measurements of mandibular motion was tested using sliding calipers. Accuracy of muscle activity levels was checked with a sine-wave calibration signal of known amplitude and frequency. Reproducibility of motion and of EMG was made using five control subjects each tested on 3 separate days. Computer measurements of motion were found to require correction for nonlinearity at openings beyond 45 mm. Most maximum voluntary excursions were found to be more reproducible than motions during mastication. However, lateral deviation during opening was strongly affected by magnet orientation and varied greatly between trials. Electromyographic recordings were distorted by improper treatment of high-frequency components of the signal and also varied greatly between trials. This study suggests that the BioPak system may indicate changes in some measures of mandibular motion and EMG levels in patients for whom no changes have occurred.
在有或没有刚性固定的情况下下颌前移后舌骨上肌肉组织的肌电图。
DOI：
10.1016/0278-2391(90)90180-a
发表时间：
1990
期刊：
Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons
影响因子：
--
作者：
Ellis3rd,E;Dechow,PC;Carlson,DS;LaRoche,V
通讯作者：
LaRoche,V
疲劳时人体下颌肌肉表面肌电图的功率谱分析。
影响因子：
3
作者：
Palla,S;AshJr,MM
通讯作者：
AshJr,MM