1. JJ Godges, PT, DPT, OCS, is Coordinator, Clinical Education and Practice, Optimum Care Providers, 200 Mantua Rd, Pacific Palisades, CA 90272 (USA)
2. MA Anger, PT, DPTSc, is Occupational Health Physical Therapist, US Healthworks Medical Group, Ontario, Calif
3. G Zimmerman, PhD, is Associate Dean, Research, School of Applied Health Professions, Loma Linda University, Loma Linda, Calif
4. A Delitto, PT, PhD, FAPTA, is Professor and Chair, Department of Physical Therapy, and Director of Research, Comprehensive Spine Center, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, Pa