1. DA Brown, PT, PhD, is Assistant Professor, Department of Physical Therapy and Human Movement Sciences, The Feinberg School of Medicine, Northwestern University, 645 N Michigan Ave, Suite 1100, Chicago, IL 60601 (USA)
2. S Nagpal, PT, MS, was a graduate student in the Department of Physical Therapy, School of Health and Human Services, D'Youville College, Buffalo, NY, when this work was conducted
3. S Chi, PT, MSPT, was Research Physical Therapist, Department of Physical Therapy and Human Movement Sciences, The Feinberg School of Medicine, Northwestern University, when this work was conducted