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Correlation between autoregressive moving‐average model parameters of electromyogram of human jaw closing muscles and maximum clenching time at intercuspal position
Author(s) -
SHI C.S.,
MAO Y.,
GUO T.W.
Publication year - 1994
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1994.tb01170.x
Subject(s) - autoregressive model , isometric exercise , mathematics , correlation , electromyography , position (finance) , positive correlation , closing (real estate) , orthodontics , statistics , medicine , geometry , physical medicine and rehabilitation , finance , economics , political science , law
Summary During maximum clenching in the intercuspal position, surface electromyograms of left masseter and anterior temporal muscles were sampled in 16 healthy subjects with natural dentitions to establish a four‐order, autoregressive (AR) moving‐average (MA) model of the myoelectrical signals. The correlation coefficients and the linear regresssion between the model parameters and the clenching time were calculated. The model parameters had the positive or the negative correlation, and AR model parameters had the higher correlation than MA model parameters. The model parameters relate to muscular fatigue and the slope of the regressive equation relates to the endurance time of the isometric contraction.