A-6 野球におけるバットの質量・重心位置が打撃に及ぼす影響(野球1(投球他))

抄録

When analyzing the swing of a baseball bat, important characteristics include the baseball bat's center of gravity, moment of inertia, length and mass. The purpose of the present study was to investigate the effect of the mass and the center of gravity of a swinging baseball bat. An experimental bat was designed, which provided twenty-five conditions for the mass and center of gravity. The knob of the experimental bat was equipped with accelerometers, which measured the three linear and three angular components of an acceleration applied to the bat. The subjects were trained five baseball players. The six components of acceleration were measured with the experimental bat under twentyfive conditions of the mass and center of gravity. The bat mass and center of gravity had an effect on the linear and angular acceleration during bat swing. Thus, it is necessary to consider the bat characteristics that suit each player.