KlNESlOLOGlCAL ANALYSIS OF OVERARM THROWING FOR ACCURACY WITH DOMINANT AND NON-DOMINANT ARMS

  • Z. Ning
  • A. Faro
  • D. Sue
  • N. Hamilton
Keywords: kinesiology, overarm throw, dominant arm, non-dominant arm

Abstract

The main aim of this study was to examine differences kinematically between dominant and non-dominant overarm throws for accuracy. Fourty-nine right-handed primaly school students served as the subjects who were requested to make overarm throws with dominant and non-dominant arms. A three-dimensional Motion Analysis System was used to collect all kinematic data of overarm throwing while performance errors were recorded by a video camera. Performance errors and kinematic variables of right and lefl hands were compaired with Paired t-test and the relation among performance errors and kinematic variables was evaluated with canonical correlation. It was found that significant differences in the accuracy existed between dominant and non-dominant overarm throws. The dominant hand shows much better throwing performance in terms of accuracy. Kinematic analysis also indicated that there were significant differences in velocity and acceleration even though there was a great similarity in the timing of velocity and acceleration in overarm throws for accuracy.