Department of Kinesiology and Science,Guangzhou Institute of Physical Education,Guangzhou Guangdong 510075 China;
Biomechanics Institute, South China University of Technology,Guangzhou Guangdong 510640 China;
College of Foreign Studies, Jinan University, Guangzhou Guangdong 510632, China;
Biomechanics Institute, South China University of Technology,Guangzhou Guangdong 510640 China;
Hand-timing; Simulated electronic timing; Dynamic-timing; Reaction time;