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Analysis of crosstalk in the mechanomyographic signals generated by forearm muscles during different wrist postures
Author(s) -
Islam Anamul,
Sundaraj Kenneth,
Ahmad R. Badlishah,
Sundaraj Sebastian,
Ahamed Nizam Uddin,
Ali Md. Asraf
Publication year - 2015
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.24454
Subject(s) - wrist , forearm , flexor carpi ulnaris , extensor carpi ulnaris , anatomy , medicine , physical medicine and rehabilitation , ulnar nerve , elbow
In this study, we analyzed the crosstalk in mechanomyographic (MMG) signals generated by the extensor digitorum (ED), extensor carpi ulnaris (ECU), and flexor carpi ulnaris (FCU) muscles of the forearm during wrist flexion (WF) and extension (WE) and radial (RD) and ulnar (UD) deviations. Methods Twenty right‐handed men (mean ± SD age = 26.7 ± 3.83 years) performed the wrist postures. During each wrist posture, MMG signals were detected using 3 accelerometers. Peak cross‐correlations were used to quantify crosstalk. Results The level of crosstalk ranged from 1.69 to 64.05%. The wrist postures except the RD did not influence the crosstalk significantly between muscle pairs. However, muscles of the forearm compartments influenced the level of crosstalk for each wrist posture significantly. Conclusions The results may be used to improve our understanding of the mechanics of the forearm muscles during wrist postures. Muscle Nerve 51 : 899–906, 2015