A6 Feature extraction of pitching form and relation of the initial rate

Abstract

In this paper, we constructed a motion measurement system using the triaxial gyro and acceleration sensor as a means of measuring the motion. The pitching form and the ball initial rate at the baseball were measured by using this system.Next,the relation between measured motion parameters and ball initial rate was examined. As a result, we found that there are significant differences in the movement of the upper limb between experienced and inexperienced person. The parameters that affect improvement of the ball initial rate were extracted !) in the experienced group and 4 in the inexperienced group.