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Letter to editor regarding “Tossini et al. Impairment of electrical activation of wrist flexor and extensor muscles during gripping and functional activities in the early stage of hand osteoarthritis: A cross-sectional study”. [J Hand Ther. 2021;34(1):109–-115]

Published:April 28, 2021DOI:https://doi.org/10.1016/j.jht.2021.04.021
      Detecting muscle activity with surface electromyography (sEMG) is a very important method to get knowledge about the muscle activity. But EMG applications with superficial electrodes have high risks of artefacts and noise. Noise elimination can be done with signal processing, but also some precautions should be taken to prevent these artefacts.
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