Some indicators explosive power and speed of the motor by the upper body and the percentage of their contribution to the completion of the activities of chucking Reconstruction 13-15 years

Abstract

There is a need to provide a means of measurement that describes the role played by the physical growth in motor development through equations to predict and determine the percentage of their contribution as showing the importance of that by absorbing a physical education teacher for the role played by the indicators construction bodywork mediated means define the interrelationship between these two phenomena - construction Jasmi and fitness - accurately , as it was not looking into the possibility contribution measurements of physical party upper and capacity Alibd intention own investigation achievements good effectively targeted shooting and its relation to indicators of measurements of the physical and some physical capacities in the range of possibilities modest reality at the present time at least , and based on that highlights the problem of search during the question about the possibility of these measurements Simplified help discover talented in competitions chucking in particular, and conducted research on a sample representing 180 students from middle school students , and the researcher used the variables body length and body weight , test throw the ball medical weighing 2 kg hands of sitting on the chair / m - and throw the ball medical test , however, one weighing 2 kg of stand / m - and test sit , lie down for 30 seconds / time - and Achtbarrma handball on the wall for 30 seconds / time. The researcher used the coefficient of linear regression to find correlations and percentage contribution was from the search results and the presence of correlation between height and the collection of other variables , except in test medicine ball with one hand and abdomen . , As well as between the weight with all the other tests Maady test abdomen for a period of (30) seconds . As well as between the explosive power of the arms , as well as speed motor . Showed the proportion of Alsahma high variable weight test the explosive power of the arms . , And the ratio of contribution between the variables of height weight in speed kinetic and explosive power . , As well as there are measurements of physical unreliable as the basis test rookies Reconstruction 13_15 year for events throwing .