Exoskeleton Training for Spinal Cord Injury Recovery

Inclusion Criteria: * At least 18 years old * Chronic SCI (\>6 months) * Injury at levels T1 to L5 (AIS A to D) * Walking Index for Spinal Cord Injury (WISCI) score 0 until 9 * Height between 150-200 cm * Weight less than 100 kg * Capable of giving informed consent on their own * Able to train (at least) 3 days/week * Able to have at least 1 companion / buddy who can attend a minimum of two of the training sessions, besides the final assessment, and who will learn how to assist them at home and in the community (ideally two companions) * Proficiency in walking with the ABLE Exoskeleton * At least 8 weeks with minimal use (less than 5 sessions) of wearable robotic exoskeletons for gait assistance at the start of the study. Exclusion Criteria: * High risk of fractures due to osteoporosis, a dual energy X-ray absorptiometry (DEXA)-scan at the hip, distal femur, and proximal tibia BMD score * Fragility fractures of the lower limbs in the last 2 years * Deterioration \>3 in the International Standards for Neurological Classification of SCI (ISNCSCI) score in the last 4 weeks * Spinal instability, like spondylolisthesis * Disorders of the arms and hands that make walking with crutches impossible * Modified Ashworth Scale (MAS) \>3 in lower limbs * Cardiovascular health issues which prevent the participant from training * Instability to tolerate 10 minutes of standing without clinical symptoms of orthostatic hypotension * Psychological, cognitive issues, or any other condition that does not allow a participant to follow study procedures * Medically unstable due to severe comorbidities, including any condition that a physician deems inappropriate for completing study participation * Skin problems in areas that would be in contact with the device * Height, width, weight, or other anatomical limitations (such as differences in leg length) incompatible with the device * Insufficient joint range of motion (ROM) for the device * Known pregnancy