Compare sequence of joint motion and muscle electromyography between low drive and high drive soccer instep kick

The purpose of this study was to examine the difference between two types of the soccer instep kick in temporal sequence of motion and muscle electromyography, during forward swing phase of the kick. Ten elite soccer players, volunteered as subjects in the study. To culculate the kinematics data, we used DLT method with two video camera that filmed five markers fixed on anatomical points of lower body, at 240 fpm. Moreover the electromyography of rectus femoris, vastus medialis and tibialis anterior were estimated. Kinematic data from ten players was extracted using image processing toolbox of MATLAB software. Using these results, we compared sequences of joint motion and progression of activation muscle in low drive and high drive kick. The results indicate that there was a difference in ranks of muscle activation between two kick, but there were no difference in muscles activation time and sequence of joint motion between low drive and high drive kick. Furthermore both kicks have a similar proximal-distal pattern and interaction in muscles contraction and joints motion