Fig. 3 | Scientific Reports

Fig. 3

From: Identification and quantification of muscular cocontraction for ankle rehabilitation through variational mode decomposition in surface electromyography

Fig. 3

Frequency spectrum of IMFs obtained by VMD. The first IMF contains the highest frequency range and thus the most amount of noise, while subsequent IMFs represent progressively lower frequency components with reduced noise. This spectral distribution highlights the effectiveness of VMD in decomposing the sEMG signal into distinct frequency bands for analysis.

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