SHOULDER JOINT VELOCITY DURING FASTBALL PITCHING IN BASEBALL

  • Xavier Gasparutto
  • Erik van der Graaff
  • Frans van der Helm
  • Dirkjan Veeger
Keywords: baseball, pitching, upper limb, shoulder, velocity

Abstract

The purpose of this study was to assess the rotation and translation velocity of the shoulder complex during fastball pitching in baseball. 8 pitchers from the Dutch AAA team performed each 3 fastball pitches. Their motion was recorded by an opto-electronic device. Kinematic computation was performed using the quaternion algebra. The results showed that the endo-rotation, depression and backward rotation velocity of the humerus at ball release are initiated by a translation of the scapular girdle in the forward and upward direction before ball release.
Published
2016-05-05
Section
Coaching and Sports Activities