المحدد البيوميكانيكي كمؤشر لتصميم بعض التمرينات الوقائية للحد من وقوع إصابات للاعبي كرة اليد أثناء التصويب الكرباجي بالوثب الطويل

الملخص EN

The current study aims to identify the biomechanical determinant as an indicator for the design of some preventive exercises to reduce the incidence of injuries to handball players during the long jump shooting, and this is achieved through 1- identifying the temporal structure of the long jump shooting skill for handball players.

3- Designing some suggested preventive exercises to reduce the incidence of injuries to handball players during long jump shooting, and the two researchers used the descriptive approach based on biomechanical analysis to obtain the variables to be studied due to its suitability to the nature of the research, The research sample was chosen by the intentional method, represented by three distinguished players in the Sharkia Sports Club, registered in the Egyptian Handball Federation, who were distinguished by performing the skill under study.

to sweeten it biomechanically, The most important results were that the time of the preparatory stage for performing the long jump shooting skill was (1.48s) with a percentage of (52.86%), while the time for the main stage was (0.68s) with a rate of (24.29%) and the time for the final stage was (0.64s) with a percentage of (22.86%).

The total time of the skill - The highest value of the angular velocity of the ankle joint and the midsection was near the end of the preliminary stage - The highest value of the angular velocity of the knee joint was in the middle of the main stage - The highest value of the angular velocity of the shoulder, elbow and wrist joints at the end of the main stage, The most important recommendations were the need to adhere to the suggested exercises and exercises emanating from the paths and performance curves of the skill under study-and the need to focus on exercises that depend on developing the flexor and extensor muscle groups for each of the joints of the body participating in the performance-and to continue to perform these exercises for the purpose of prevention and prevention of injuries in the future-and the need for weight Trainers and rehabilitation specialists on the basis and methods of biomechanical analysis, which has a great impact in building their programs on clear, non-hypothetical and speculative scientific bases to raise the level of sports.