Evaluation of Usability and Human Factors in the Novus System

Inclusion Criteria: * Upper motor neuron injury or disease. * Foot drop - toe drag during walking. * Lower limb spasticity- 0-4 according to the modified Ashworth scale. * Responsible mental state, able to follow multiple step directions. * Aged between 18 and 80 years old. * At least six months post diagnosis * Available for participating in the study. * Able to understand and sign the informed consent form. * Able to walk independently or with an assisting device (e.g. cane, walker etc.) / spot guarding for at least 10 meters. * Sufficient response to electrical stimulation (visible muscle contractions in a seated or prone position of each designated muscle separately). Exclusion Criteria: * Subjects with a demand-type cardiac pacemaker, defibrillator or any electrical or metallic implant. * Cancerous lesion of lower limb, present or suspected. * Medical condition that prevents participation or would likely lead to inability to comply with the protocol \[e.g.: congestive heart failure, patient receiving chemotherapy, uncontrolled epilepsy, etc.\]. * Skin lesion at the site of the stimulation electrodes. * Change in bone-joint structures of the lower limb, such as: * Contractures (ROM of dorsiflexion \< 0) * Deformations; fracture or dislocation, which would be adversely affected by motion from the stimulation. * Pregnancy. * Diagnosis of major depression or psychotic disorder. * Participation in another investigation that may directly or indirectly affect the study …