1. Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
2. Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands
3. Sports Medicine and Movement Laboratory, School of Kinesiology, Auburn University, Auburn, AL, USA
4. Research and Development, Driveline Baseball, Kent, WA, USA