Electrical Stimulation System with Surface Electromyography Feedback

Currently, various kinds of electrical stimulation equipment are used in the rehabilitation of muscle function for patients with hemiplegia, but many defects can be found in those designs, for example, insufficient feedback parameter, unsynchronized information, unintuitive display and so on. Therefore, this study introduces an electrical stimulation system with surface electromyography (sEMG) feedback based on LabVIEW, which combines with multi-channel sEMG acquisition, electrical stimulator and other hardware system. This system can not only provide a wide electrical stimulation parameters range for frequency, pulse width and intensity, but also acquire sEMG during the treatment. Meanwhile, this system can compute iEMG, CCR, RMS and MPF in real-time. The verification results shows that the whole system is effective and stable. This system can help physicians observe the muscle condition of different patients, who can explore suitable electrical stimulation parameters to design individualized treatment projects.