Abstract

The battery of tests for motion performance contains a test of “distance of the ball throw from standing position”, whereas the men and juniors use a full ball of 1 kg weight for technical reasons. The results of the test are considered as the indicators of the level of the arm swinging power. Since the weight of the full ball used for the above stated test is double in comparison to the weight of ball that the official rules allow for match (425-475 g), it is possible to suppose this difference hypothetically influences the technique of shot (throw) of the juniors. We measured the speed of the shot ball using a Stalker radar device. The measurements were performed in two sets, younger and older players. The results of our study show that there is an interrelationship between the “throw ball” test and test of speed of shot ball, tightness of which apparently changes in course of single stages of the sport preparation. Nevertheless, we suppose it is possible to use the “throw ball” test in the future as an indicator of level of arm swinging power. Verf.-Referat