Po-Wen Ku1,2, Mark Hamer3, Ming-Chun Hsueh4, Li-Jung Chen5. 1. Graduate Institute of Sports and Health, National Changhua University of Education, Changhua City, Taiwan. 2. Department of Kinesiology, National Tsing Hua University, Hsinchu, Taiwan. 3. Institute of Sport Exercise & Health, Division of Surgery & Interventional Science, Faculty of Medical Sciences, University College London, London, UK. 4. Graduate Institute of Sport Pedagogy, University of Taipei, Taipei, Taiwan. 5. Department of Exercise Health Science, National Taiwan University of Sport, Taichung, Taiwan.