Artifact-Suppressing Amplifier for EMG Registration during Repetitive Peripheral Magnetic Stimulation (RPMS)

To induce a most physiological proprioceptive inflow to the CNS, the intensity and the repetition frequency of the RPMS are adapted by a closed loop control to induce coordinated movements. For the closed loop control and the quantification of the therapeutic outcome it is necessary to measure the (remaining) voluntary muscle activity, while the RPMS is applied. This is essential, since the patient is advised to assist the induced movements as far as possible. Therefore an RPMS artefact-suppressing EMG amplifier has to be developed to measure the activity of the stimulated muscle during the stimulation. Hereby t…