Electromyography action analysis of Zhang Bao Wing Chun Ri-Zi punching of expert players

By using three-dimensional kinematics and surface electromyography telemetry instrument to analyze the characteristic of Wing Chun Rizi punching,this paper aims to provide data support for punching features and scientific training of Wing Chun.Upper extremity muscles were found to activate at first,then proximal muscle,and in the final stage of punch multiple muscles were presented co-activated. The fact that distal upper extremity muscle was first activated displays the special force characteristics of traditional Wushu theory;in the process of punching,contralateral muscle of upper arm was in moderate coordination,which lays a good foundation for different action on both sides in the advanced stage of Wing Chun;at the end of punch(the elbow close to straight)many muscles of the trunk,upper and lower limb were co-activated,improving the effecty when hitting the target and enhancing attack effect.