One Foot Back Spiking Action EMG And Kinematic Analysis Of Volleyball Athletes Of Beijing Sport University

Single instep fly spiking is a member of the quick spiking, volleyball is a basic technology of single instep fly spiking takeoff speed and attack effect, is both feet jump smash incomparable, single instep fly smash with its unique advantage has been widely used in the volleyball match. Previous studies mainly focused on the actions of a few star athletes, motion model is established, and the participation of the muscles in the process of action conditions there are very few direct test, this article through to the table electrical technology and 3 d infrared light spot motion capture system for athletes single instep fly spiking movements were analyzed, so as to teaching volleyball, volleyball teaching and training to provide the reference.Research object:the volleyball players single instep fly spiking technique action of electromyography study and action analysis as the research object. In Beijing sports university men's volleyball team 5 player and six men's volleyball team of institute of education as test object.Methods:using the methods of all and 3 d infrared light spot motion capture system to 11 athletes testing single instep fly spiking action.The results of the study:1. Single instep fly spiking of the mobilization of the pilot phase arm muscles around the shoulder, elbow and wrist joints. Handwaving mobilization order phase of the muscles is around the shoulder, waist and abdomen, wrists, elbows. Complete single instep fly spiking trapezius muscle is the main muscle, pectoral is major, deltoid toe, beam after the deltoid muscle and triceps.2 in the single foot back spiking in the process, all the players are using the three step approach, the stride is small, medium and large run-up rhythm. The common group of playersin the run-up run-up angle is large, in the center of gravity in the run-up to the fluctuation.3 The group of players to control the swing of the ordinary difference in high level players. The high level group of players to lead the largest arm shoulder rotation angle is greater than that of ordinary group of players, indicating high level group of players with larger muscles are fully stretched.4 in the single foot back spike landing stage, all the players are left to right foot landing.