1. TM Austin, PT, PhD, ATC, is Assistant Professor, Department of Physical Therapy, Doisy College of Health Sciences, Saint Louis University, 3437 Caroline St, St Louis, MO 63104 (USA)
2. KC Graber, EdD, is Associate Professor, Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, Ill, and University of Illinois Distinguished Teacher/Scholar