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Relationship between autoregressive model coefficients of EMG and its potentials of jaw closing muscles at rest position and clenching
Author(s) -
SHI C.S.,
HUA Z. Y.
Publication year - 1992
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.1365-2842.1992.tb01115.x
Subject(s) - autoregressive model , closing (real estate) , electromyography , position (finance) , rest (music) , mathematics , linear regression , orthodontics , anatomy , statistics , medicine , physical medicine and rehabilitation , cardiology , finance , political science , law , economics
Summary At rest position and varied clenching levels at intercuspal position, autoregressive (AR) models of myoelectrical activities of both masseter and anterior temporal muscles of 11 healthy subjects with intact natural dentitions were established. The relationship between the AR model coefficients of surface EMGs and their potentials was analyzed by multiple linear regression. It was found that the fourth order coefficient of AR had the greatest effect on the EMG potential levels and their relationship was positive in all recorded muscles. The results indicate the AR coefficients may become a characteristic parameter to describe myoelectrical activity of jaw closing muscles.