his study investigated the influence of instruction on the ball velocity and accuracy of a goal-direcred overarm throw. 9 experienced Norwegian male team handball players executed a throwing task randomly seven times under 5 different instructions varying from emphasizing speed to accuracy. When instructions increasingly emphasized accuracy, velocity decreased. However, accuracy did not improve when subjects were instructed to focus on it. A possible explanation for this finding could lie in the specific subject group. The subjects were highly experienced team handball players with an average of 12 years in the sport. Thus, the accuracy they demonstrated :If high velocity might actually be already extremely high and difficult to improve upon when reducing throwing velocity. Further, the velocity of throwing when instrucuon emphasized accuracy was approximately 85% of the maximal velocity, indicating that experienced team handball players are trained to throw accurately at relatively high velocity.
© Copyright 2003 Perceptual and Motor Skills. Ammons Scientific. All rights reserved.
|Subjects:||handball throws arm muscle movement precision movement velocity movement co-ordination strength analysis biomechanics|
|Published in:||Perceptual and Motor Skills|