Because the achievement of improved secondary medical outcomes is likely dependent on the ability to walk in the exoskeletons, the primary outcome will be achievement of mobility skills in the exoskeletal devices. It has not been demonstrated in a large sample that people with SCI can use the device as described by the pilot data. Secondary outcomes will be change in fat mass and bowel function. Exploratory outcomes will be change in cardiovascular and autonomic measures and quality of life surveys [using the newly validated SCI quality of life (SCI-QOL) tool for bowel, bladder and five emotional domains]21,50.