1. Department of Physical Education, Nankai University, Tianjin, China
2. China Swimming College, Beijing Sport University, Beijing, China
3. Department of Physical Education, Shanghai Jiao Tong University, Shanghai, China
4. School of Sports Medicine and Rehabilitation, Beijing Sport University, Beijing, China
5. Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China
6. School of Recreational Sports and Tourism, Beijing Sport University, Beijing, China