1. L.A. Chiarello, PT, PhD, PCS, is Associate Professor, Department of Physical Therapy and Rehabilitation Sciences, Drexel University, 245 N 15th St, Mail Stop 502, Philadelphia, PA 19102-1192 (USA), and a member of the scientific staff of Shriners Hospitals for Children, Philadelphia, Pennsylvania.
2. R.J. Palisano, PT, ScD, is Professor, Department of Physical Therapy and Rehabilitation Sciences, Drexel University, and a member of the scientific staff of Shriners Hospitals for Children, Philadelphia.
3. J.M. Maggs, DocEd, MCSP, is Adjunct Faculty, Department of Physical Therapy and Rehabilitation Sciences, Drexel University.
4. M.N. Orlin, PT, PhD, is Associate Professor, Department of Physical Therapy and Rehabilitation Sciences, Drexel University, and a member of the scientific staff of Shriners Hospitals for Children, Philadelphia.
5. N. Almasri, PT, PhD, was a doctoral candidate in the Department of Physical Therapy and Rehabilitation Sciences, Drexel University, at the time the study was completed.
6. L.-J. Kang, PT, PhD, was a doctoral candidate in the Department of Physical Therapy and Rehabilitation Sciences, Drexel University, at the time the study was completed.
7. H.-J. Chang, PT, MS, is a doctoral candidate in the Department of Physical Therapy and Rehabilitation Sciences, Drexel University.