EKSO Trial: Powered Exoskeleton for Ambulation in Subjects With Spinal Cord Injury (SCI)

This study seeks to test the safety and efficacy of the Esko device in SCI population and in populations with similar neurological weakness to the SCI population. The device can currently stand from a seated position, walk, and turn and sit down. Our hypothesis are as follows: * Hypothesis 1: We hypothesize that the Ekso subject will significantly improve balance while wearing the device as noted by subject's ability to safely achieve standing balance for 30 sec without loss of balance. * Hypothesis 2: We hypothesize that the Ekso subject will display improved ability to safely ambulate 10 meters to be assessed using the 10 meter walk test. * Hypothesis 3: We hypothesize that the Ekso subject will display improved weight shift in both static and dynamic activities as determined by a trained physical therapist. * Hypothesis 4: We hypothesize that the Ekso subject will verbalize improved success with training of the device as noted by subjective questionnaires that will be assessed following each training session.