1. Susan M. Linder, PT, DPT, NCS, is Research Scientist, Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH; linders@ccf.org
2. Anson B. Rosenfeldt, PT, DPT, MBA, is Senior Physical Therapist, Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH
3. Matthew Rasanow is Research Assistant, Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH
4. Jay L. Alberts, PhD, is Staff, Department of Biomedical Engineering, Cleveland Clinic, and Investigator, Cleveland FES Center, L. Stokes Cleveland VA Medical Center, Cleveland, OH