From the Human Engineering Research Laboratories (JY, MLB, JDL, SGF), Department of Physical Medicine and Rehabilitation, School of Medicine, University of Pittsburgh; VA Pittsburgh Health Care System (JY, MLB, SGF), Center of Excellence in Wheelchairs and Related Technology; Department of Rehabilitation Science and Technology (MLB, SGF), School of Health and Rehabilitation Sciences, University of Pittsburgh; Department of Bioengineering, School of Engineering (MLB), University of Pittsburgh, Pittsburgh, Pennsylvania; Kessler Medical Rehabilitation Research and Education Corporation (TAD-H); Department of Physical Medicine and Rehabiliation, University of Medicine and Dentistry of New Jersey-New Jersey Medical School (TAD-H), West Orange, New Jersey; and Department of Rehabilitation Medicine (MWC), University of Washington, Seattle, Washington.
All correspondence and requests for reprints should be addressed to Michael L. Boninger, MD, Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, 7180 Highland Drive, Building 4, Second Floor East, 151R-1. Pittsburgh, PA 15206.
Parts of this article were presented at the 44th Annual Association of Academic Physiatrists Educational Conference, April 10–14, 2007, Puerto Rico. This material is the result of work supported with resources and the use of facilities at the Human Engineering Research Laboratories, VA Pittsburgh Healthcare System, and the following funding sources: National Institute on Disability and Rehabilitation Research grant number H133A011107 and H133N000019, Veterans Affairs Office of Academic Affiliations grant number OAA01 (Post-Residency Advanced Fellowship in Spinal Cord Injury), and the Veterans Affairs Rehabilitation Research and Development Service, United States Department of Veterans Affairs grant numbers B869RA, B2290T, and B3057R.