[Retracted] Mechanism of Hyperbaric Oxygen Combined with Astaxanthin Mediating Keap1/Nrf2/HO-1 Pathway to Improve Exercise Fatigue in Mice

Figure 5

Preprocessing of ECG and EMG signals. Note: (a) the original ECG signal; (b) the ECG signal processed by the NLMS algorithm; (c) the ECG signal peak label after the processing; (d) the original surface EMG signal; (e) the surface EMG signal after high-pass filtering; and (f) the surface EMG signal after power frequency filtering.

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