علاقة بعض المتغيرات البايوكينماتيكية لأداء ضربة الإبعاد الخلفية بالدقة لدى لاعبي الريشة الطائرة

Abstract EN

The study aimed to Recognize the values of a number of bio kinematical variables for the performance of the backhand clear stroke for badminton players.

Recognize the values of the accuracy test for the performance for the backhand clear stroke of badminton players.

Recognize the relationship between a number of bio kinematical variables and the accuracy values of the backhand clear stroke for badminton players.

The researchers used the descriptive approach with the correlational style, for its convenience to the study nature, The research sample was selected from the players of the elite clubs registered with the Iraqi Badminton Federation, and the research sample consisted of (7) players.

The researcher used sources, scientific references, interviews, questionnaires, testing, measurement and scientific observation as means of data collecting, the study included bio kinematical variables and the accuracy of the forehand and backhand clear strokes skill.

The researchers concluded The increase of preparing phase time of the backhand clear stroke is directly related to accuracy, The relationship between the hitting arm's shoulder angle and the free-arm elbow angle with accuracy was direct at the maximum return of the racket, while the relationship was inverse with the forearm with the racket angle variable in the backhand clear stroke skill, The relationship was direct between accuracy and the lead leg's knee angle variable and inversely with the ankle angle at the moment of the shuttlecock impact in the backhand clear stroke skill, The increase in the free-arm wrist angular difference in the main phase had a direct relationship with the accuracy of the backhand clear stroke skill, There was a significant relationship between the (angular velocity of the hitting arm elbow, angular velocity of the forearm with the racket) variables (separately) with accuracy in the main phase of the backhand clear stroke skill, The increase in angular velocity and the circumferential velocity of the hitting arm with the racket has a direct relationship with the accuracy in the main phase of the backhand clear stroke skill.