Lower-Limb Exoskeleton Technology for Non-Ambulatory Individuals With Spinal Cord Injury

The purpose of this study is to compare two types of wearable lower-extremity exoskeletons -a self-balancing device lower-extremity exoskeleton and a user-balancing device lower-extremity exoskeleton-to better understand their effects on the physiological responses to walking and the user experience in people with spinal cord injury.

Inclusion Criteria: * Subacute to chronic SCI (≥ 3mths post injury) * Motor-complete (ASIA Impairment Scale classification A/B) * Injury level T3-T12 * Age 18-70 yrs * Height between 5'1" and 6'1" * Weight \ 15mins * Have sufficient upper limb strength to use a platform rolling walker, rolling walker, or forearm crutches * Currently medically cleared and enrolled in the Shepherd Center Beyond Therapy program * Medically cleared for weight-bearing activities * Able to follow directions to safely participate in assessments Exclusion Criteria: * Existing skin lesions or wounds * Hip or knee contracture \> 10 degrees or ankle contracture \> 5 degrees * Severe or uncontrolled spasticity * Non-healing fractures * Uncontrolled autonomic dysreflexia * Heart or peripheral vascular condition * Pregnancy * Active heterotopic ossification * Active deep vein thrombosis * Cognitive deficits that make it difficult for participants to follow verbal instructions or making it unsafe to participate in assessments. * Any reason the principal investigator feels the potential participant may not be safe to participate in the study