Assessment of Carbon/Salt/Adhesive Electrodes for Surface Electromyography Measurements
We developed and tested new EMG electrodes that do not require hydrogel. The electrode is composed of carbon/salt/adhesive (CSA). We compared the performance of CSA to the standard Ag/AgCl electrodes subjected to various muscle contractions and relaxation movements. We found no significant differences in the signals’ amplitude, activation times and dynamics between two media during all muscle movements. Moreover, the CSA electrodes were found to be more resistant to noise and motion artifact contamination, and with lower spectral distortion than Ag/AgCl electrodes. CSA electrodes are potentially a suitable surrogate for Ag/AgCl electrodes for EMG with the added benefits of an infinite shelf-life and potentially lower cost.