1. Departments of Orthopedics and Physical Therapy, Holy Cross Orthopedics Institute, Fort Lauderdale, FL, USA
2. Division of Biokinesiology and Physical Therapy, University of Southern California, Los Angeles, CA, USA
3. Department of Educational Foundations, Leadership, and Technology, Auburn University, Auburn, AL, USA
4. Department of Human Physiology, University of Oregon, Eugene, OR, USA
5. Department of Research & Development, Driveline Baseball Research & Development, Kent, WA, USA