Journal of NeuroEngineering and Rehabilitation

Authors ’ contributions Contents of this manuscript represent the opinions of the authors and not necessarily those of any government agency, academic or healthcare institution. All authors have read and approved final manuscript. Ethics approval and consent to participate Not applicable. Consent for publication Not applicable. Competing interests The authors declare that they have no competing interests. Publisher ’ s Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Author details 1 Extremity Trauma & Amputation Center of Excellence (EACE), U.S. Department of Veterans Affairs, Tampa, FL, USA. 2 School of Physical Therapy and Rehabilitation Sciences, University of South Florida, Tampa, FL, USA. 3 Department of Clinical and Scientific Affairs, Hanger Clinic, Austin, TX, USA. 4 Department of Physical Medicine and Rehabilitation, University of Utah, Salt Lake City, UT, USA. 5 Motion & Sports Performance Laboratory, Stanford Childrens Health, Palo Alto, CA, USA. 6 Department of Clinical Research & Services, Ottobock Healthcare, Austin, TX, USA. Published: 5 September 2018 Highsmith et al. Journal of NeuroEngineering and Rehabilitation 2018, 15 (Suppl 1):52 Page 2 of 72