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. 2023 Mar 26;53(5):1019–1031. doi: 10.55730/1300-0144.5667

Figure 3.

Figure 3

Conventional signal analysis methods for surface EMG: a) raw surface EMG in the time domain, b) rectified surface EMG signal, c) smoothed surface EMG signal, and d) PS of surface EMG signal in the frequency domain.