AN ANALYTICAL STUDY OF SOME KENMATICAL VARIABLES AND SUMMIT OF ELECTRICAL ACTIVITY OF THE STRIKING ARM MUSCLES OF THE STRAIGHT TRANSMISSION IN TENNIS

Because of the skill tennis transmission is a fundamental skill begins with it the game and implements after each point reflected negatively on the level of performance and achievement and therefore the researchers felt to make a comparison between successful and failed transmissions. This study aimed to The differences between the values of some kenmatical variables of the successful and failed straights transmissions in the tennis and differences between the summit of the electrical activity of the muscles of the striking arm (deltoid muscle and the triceps muscle and brachial biceps muscle and flexor carpi radialis) of the successful and failed straights transmissions in tennis. Speed of ball was targeted and filmed so as the EMG for activated muscles was recorded during Tennis transmissions. Current study put much of conclusions like; The high electrical activity of the deltoid muscle had an effect clearly in the speed of lifting movement of the upper arm to the top in the striking arm as was significant and in favor of the successful attempts.The high electrical activity of the flexor carpi radialis muscle has an effect clearly in the installation of the wrist at the moment of the collision between the ball and the racket as it was of significance and in favor of the successful attempts