تأثير تمرينات القدرة الانفجارية للرجلين باستخدام أوزان مضافة على وفق الآداء في بعض المتغيرات البايوميكانيكية لفعالية الوثبة الثلاثية والإنجاز دون سن 17 سنة

الملخص EN

The results of the triple jump in the world championships witnessed a remarkable development in the level of digital achievement for the juniors.

This development is related to the development of the players' physical abilities.

There were many different ways and means of training in order to compete for the best distance achieved in this event, so the importance of research came in the numbers of explosive ability exercises for the two men using Weights added according to performance in some biomechanical variables for the effectiveness of the triple jump and achievement under the age of 17 years.

Biomechanical variables (the angle of rise, the height of the center of gravity of the body at the moment of rest, the height of the center of gravity of the body at the moment of rise, the speed of the last step, the angle of departure, the speed of getting up, the force of the driving leg, the instantaneous thrust of the driving leg, the distance of the hopscotch, the step and the jump distance).

There is a noticeable decrease in the jumper's launch velocity at the moment of hitting the jumping board, which is directly related to the explosive force, its times, the take-off angle, and This inevitably results from a weak performance in the strength of the legs and their compatibility with the arms at the moment of the full performance of the jumpers, as well as the lack of focus on taking the correct mechanical position for the jumper at the moment of getting up.

The instantaneous of the driving leg and an increase in the effectiveness of the voluntary muscles, and the achievement is determined in the light of the development in strength, speed and time associated with the application of exercises with weights added to the legs according to performance and according to the nature of the jumper the by performed movements.