咬肌电最大Lyapunov指数功能分析

Function Analysis of the Largest Lyapunov Exponent of Masseter Muscle

目的:将混沌特征量应用于偏侧咀嚼预测。方法:采用混沌分析方法中的小数据量法计算了男性和女性的咬肌电的最大Lyapunov指数,对最大Lyapunov指数应用可重复双因素方差分析处理。结果:咬肌电具有混沌特性;男性咬肌电最大Lyapunov指数明显高于女性咬肌电最大Lyapunov指数;左右2侧的咬肌电混沌程度相当。结论:可以将最大Lyapunov指数用于表征咬肌电,在预测和诊断偏侧咀嚼时,左右2侧咬肌电最大Lyapunov指数对比分析可以用于参考。

Objective To apply chaos characteristics to prediction of the unilateral mastication. Methods The paper calculated the Largest Lyapunov Exponent of the masseter muscle of some males and females with a method from small data sets, which then was processed by reusable two-factor analysis of variance. Results The results shows that the signal of the masseter muscle has chaos characteristics, the male＇s Largest Lyapunov Exponent is higher that the female＇s, and the chaos degree of the masseter muscle on both sides is consistent nearly. Conclusion The Largest Lyapunov Exponent can he used to characterize the signal of the masseter muscle. Comparative Analysis of the Largest Lyapunov Exponent on both sides can be used as reference when to predict and diagnose the unilateral mastication.