1. Department of Clinical and Applied Movement Sciences, University of North Florida, 1 UNF Drive, Jacksonville, FL 32224, USA
2. Brain Rehabilitation Research Center (151A), Malcom Randall VA Medical Center, 1601 SW Archer Roadd, Gainesville, FL 32608, USA
3. Department of Aging and Geriatric Research, University of Florida, Gainesville, FL 32603, USA
4. Department of Physical Therapy, University of Florida, P.O. Box 100154, Gainesville, FL 32610-0154, USA
5. Brooks Rehabilitation, Jacksonville, FL 32216, USA