تأثير تدريبات خاصة في المتغيرات القدرات البدنية و البايوميكانيكية و دقة الأرسال التنسي بالكرة الطائرة

Abstract EN

Due to the world's interest in sports to reach the highest levels, a lot of interest in the recent changes and developments that occur was not a coincidence, but came as a result of a sound technique in the field of sports training, which leads to finding the best solutions to many of the problems facing coaches, and volleyball is one of the sports, the skill of sending forget in volleyball is one of the motor skills that is the basis of the offensive skill performance in the game and its pillar, and trying to identify the effect of using these special and skill exercises on some variables of physical and biomechanical abilities and transmission accuracy based on the applications of these training methods according to mechanical theories.

the most important goals were to prepare special exercises to develop in the variables the physical and biomechanical abilities and the accuracy of the tennis transmission of the research sample.

identifying the differences between the tribal and remote tests in the variables of physical and biomechanical abilities and the accuracy of the tennis transmission of the research sample.

accordingly, the researcher assumed that special exercises had a positive effect on the development of the variables, the physical and biomechanical abilities and the accuracy of the tennis transmission of the research sample.

there are statistically significant differences for the variables of physical and biomechanical abilities and the accuracy of the tennis transmission between the results of the pre and post test for the research sample.

the researcher used the experimental method by designing the pre and post tests according to the nature of the research problem.

the research sample was determined from the karmian university volleyball team, which numbered (15) players, and thus the total number became (12) players.

players on whom the pilot experiment was conducted.

the players were divided randomly and by lottery into two groups of (6) players for each control and experimental group.

the researcher used from the tests the force distinguished by the speed, the explosive force of the arms, the angular and circumferential speed, the ball angle shooting, and the accuracy of the tennis transmission using the video camera (mobile iphone 8 plus) number (2) to ensure the accuracy of the results.

the pre-tests for the group (experimental and control) were conducted on Wednesday and Thursday corresponding to (8-9 / 12 / 2021) at (10) in the morning, while the post tests for the two groups were conducted on Tuesday and Wednesday corresponding to (8-9 / 2 / 2022) and at (10) in the morning, the closed halls in the college of physical education and sports sciences in khanaqin and with the help of the auxiliary work team.

special physical exercises in the variables of physical abilities (strength characterized by speed and explosive power of the arms) and biomechanical variables in the values of (angular and circumferential velocity and the angle of launching the ball) and the accuracy of the tennis transmission in favor of the experimental group.