1. Department of Sports Medicine, China Medical University, Taichung, Taiwan
2. The Office of Physical Education, Chung Hua University, Hsinchu, Taiwan
3. Graduate Institute of Sports Equipment Technology, University of Taipei, Taipei, Taiwan
4. The Office of Physical Education, Chien Hsin University of Science and Technology, Taoyuan, Taiwan
5. Peak Force USA, Johnson City, TN, USA
6. Department of Electronic Engineering, National Tsing Hua University, Hsinchu, Taiwan
7. Center for Sport Science and Technology, National Tsing Hua University, Hsinchu, Taiwan
8. National Baseball Research and Development Center, Taipei, Taiwan