The amount of Determination of some Bio-Kinematic Variables in the Accuracy of the Skill of Aiming When Jumping High with a Handball

Abstract

The introduction to the research summarized that the most important science that contributed to the progress of movement in the sports field is biomechanics, as studying movement according to scientific foundations requires knowledge of the laws and mechanical factors affecting the motor performance of sports events. Therefore, those working in the sports field were interested in studying, analyzing, evaluating and developing skills through diagnosing areas of strength and weakness in these skills in order to improve the level of technical performance. The problem with the research is that most players lack full awareness and understanding of how to invest in the relevant mechanical foundations and laws in performing the skill under research, which causes a defect in the smooth flow of the connection between the shooting stages and thus failure in achieving their goal, and since the shooting skill is from jumping high in handball One of the most important basic skills that plays an important role in determining the outcome of the match: It prompted the researcher to analyze the skill and study its details. The aim of the research was to identify the relationship between some bio-kinematic variables and the degree of accuracy of the shooting skill of jumping high with the handball. The descriptive approach was used on a sample chosen in an intentional way, consisting of (10) players from the Army Sports Club. The researcher reached a number of results, the most important of which are: There is a correlation between some of the biomechanical variables under investigation and the accuracy of the shooting skill from jumping high. The results showed that each of the variables of step length, speed, angular velocity of the throwing arm, and angular velocity of the torso have a major role in the accuracy of aiming from jumping high. This is through the contribution percentages of these variables, and the highest contribution percentage was respectively: step time, followed by the angular velocity variable of the throwing arm, stride speed, and angular velocity of the torso in the skill of shooting accuracy from jumping high, and the lowest contribution percentage was of the variable stride length in the skill of shooting accuracy from jumping high. and this achieves one of the sustainable development goals of the United Nations in Iraq which is (Quality Education).