Neeman H, McCall W, Plesh O, Bishop B
Department of Physiology, State University of New York, Buffalo 14214.
Comput Methods Programs Biomed. 1990 Jan;31(1):19-32. doi: 10.1016/0169-2607(90)90028-8.
This paper describes software developed to analyze the temporal and spatial aspects of jaw movements, the speed, direction and magnitude of these movements in three dimensions, and the associated electromyograms (EMGs) of the masticatory muscles. Data from a subject chewing gum illustrates the software application. Manipulations of the stored digitized data are described. Temporal aspects of each chewing cycle are defined by specified delimiters for the beginning and ending of jaw opening and closing; spatial aspects are quantified by measurements derived from movement trajectories; and peak and mean velocities are derived from the velocity profiles. EMGs are digitized, rectified, averaged and referenced to jaw movement. Onset latencies, burst durations, rise times to peak activity, time of occurrence of peak activity, and amplitudes of peak and mean activities are measured from the EMGs. This detailed kinematic/EMG analysis provides previously inaccessible information about jaw muscles and the movements they control.
本文描述了所开发的用于分析下颌运动的时间和空间方面、这些运动在三维空间中的速度、方向和幅度以及咀嚼肌相关肌电图（EMG）的软件。来自一名咀嚼口香糖受试者的数据说明了该软件的应用。文中描述了对存储的数字化数据的处理方法。每个咀嚼周期的时间方面由下颌开合开始和结束的特定界定符定义；空间方面通过从运动轨迹得出的测量值进行量化；峰值和平均速度则从速度曲线中得出。肌电图被数字化、整流、平均并与下颌运动相关联。从肌电图中测量起始潜伏期、爆发持续时间、达到峰值活动的上升时间、峰值活动出现的时间以及峰值和平均活动的幅度。这种详细的运动学/肌电图分析提供了以前无法获得的有关下颌肌肉及其控制的运动的信息。
