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本文从嚼肌、二腹肌前腹在咀嚼周期的 EMG(肌电图)变化中,观测和分析了各时相的特点、划分标志、电位波幅及持继时间,发现开口相和咀嚼相的持继时间对周期的全程影响最大,闭合过程中嚼肌各施力阶段的电位波幅显示较高的相关性。两肌有相互拮抗及协调作用。
In this paper, we observed and analyzed the characteristics of EMG (EMG) during the chewing period from the chewing muscles to the anterior belly of the two abdominal muscles. The signs, the amplitude and duration of the potential fluctuations were observed and analyzed. The phase of the opening phase and the chewing phase were found The holding time has the greatest effect on the whole period of the cycle. During the closing process, the potential amplitude of each force stage of the chewing muscle shows a high correlation. Two muscles have mutual antagonism and coordination.