Restoration of Normative Postural Control

Inclusion Criteria: * 18 years or older; * unilateral bower limb amputee * K-level 2 or higher (who are frequent prosthesis users and may benefit from the proposed prosthesis training and use of dEMG controlled powered prosthesis) * Amputation occurred over 2 years ago * At least 1 year of experience using their prosthetic leg * Has used the current socket for at least 6 months without a significant skin issue or major modification * Are willing to come to NC State University's Centennial Campus to participate in research and be photographed while doing research activities Exclusion Criteria: * Have a very short residual shank (the length of the residual limb is ≤15% of the length of intact limb) * Cannot perform functional ambulation in the community on a daily basis without assistive devices * Cognitive or visual impairment that affects the participant's ability to provide informed consent or to follow simple instructions during the experiments * Congenital amputees * Amputees who use powered prosthetic ankles * Weight more than 300lbs * Pregnant Person * Allergic to latex, which is often contained in medical tapes.