extended after the intervention compared with that before. The movement of the hip joint was observed to be symmetrical after the intervention. Further, the maximum knee extension angle of the right leg in stance phase increased by over 10 degrees, which was almost equal to that of the left leg. The iEMG signals of the left RF, right ST, and right ST during stance phase decreased after the intervention (Fig. 4a–h). The iEMG signals of the right GM and right VL during the entire walking cycle decreased. Moreover, the timings of activation of the left GM and left VL were earlier. Further, the iEMG signals of the muscles in the left lower limb after the intervention increased after the patient’s toe left the ground.