The present disclosure provides a neuromodulation method for treating neurodegenerative disease. The neuromodulation method comprises attaching a first active electrode to a patient's leg in the back of the knee area in an expected location of a peroneal nerve of the first leg and attaching a grounding electrode to the patient's body. Generating electrical pulses by a pulse generator connected to the first active electrode and the grounding electrode. Stimulating by the first active electrodes the peroneal nerve of the first leg and controlling via a control unit a flow of the generated pulses to the first electrode.