“…Historically, EMG analysis methods evolved from spectral analysis [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ] and time-domain signal analysis methods such as morphological analysis [ 8 ], amplitude analysis [ 9 ], and autoregressive analysis [ 10 , 11 ] towards time–frequency domain analysis [ 12 , 13 , 14 , 15 , 16 ]. The state-of-the-art of EMG analysis methods is characterized by the active use of nonlinear data analysis methods [ 17 ], such as fractal analysis [ 18 ], phase analysis [ 19 ], recurrent quantification analysis [ 4 , 20 , 21 ], and the deep learning of neural networks [ 12 , 22 , 23 , 24 , 25 ]. According to the authors, the existing methods for analyzing EEG, EMG, and tremor signals, such as wavelet analysis [ 26 , 27 , 28 ], focus on local time–frequency changes in the signal and, therefore, do not reveal the generalized properties of the signal.…”