ADJUSTMENT MOVEMENT TO BASEBALLS TOSSED AT DIFFERENT VELOCITIES IN BASEBALL BATTING. －FOCUS ON A SHIFT IN THE CENTRE OF GRAVITY－

Authors

Takahito Tago, Tokushima Bunri UniversityFollow
Kenichi Kaneko
Daisuke Tsuchioka
Nobuko Ishii

Category

Methods

Document Type

Paper

Abstract

The purpose of this study was to compare shifts in the centre of gravity (CG) when balls were tossed at different velocities, in order to obtain data for coaching purposes. The subjects were 10 experienced university baseball players. The subject batted basic toss up ball toward the centre field, both fastballs and slowballs. Data were collected using 2 high-speed cameras (NAC Inc., Japan). The movement timing and velocity of the center of gravity were computed. Batting motion was divided into three phases. The mean times in the 1st phase and 3rd phase were approximately the same for both fast and slow balls, but both the time and distance by which the CG moved in the 2nd phase were significantly greater for slow balls than for fast balls.

Recommended Citation

Tago, Takahito; Kaneko, Kenichi; Tsuchioka, Daisuke; and Ishii, Nobuko (2018) "ADJUSTMENT MOVEMENT TO BASEBALLS TOSSED AT DIFFERENT VELOCITIES IN BASEBALL BATTING. －FOCUS ON A SHIFT IN THE CENTRE OF GRAVITY－," ISBS Proceedings Archive: Vol. 36: Iss. 1, Article 75.
Available at: https://commons.nmu.edu/isbs/vol36/iss1/75