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Updated: Apr 24, 2026
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Published on: December 31, 2013
Analysis of crosstalk in the mechanomyographic signals generated by forearm muscles during different wrist postures
Anamul Islam1, Kenneth Sundaraj1, R Badlishah Ahmad1
1AI-Rehab Research Group, Universiti Malaysia Perlis (UniMAP), Kampus Pauh Putra, 02600, Arau, Perlis, Malaysia.
Introduction:
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.
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