The effect of deep training of the stem muscles on the development of some biomechanical indicators for the stage of advancement and the achievement of the long jump among young people

تأثير التدريب العميق لعضلات الجذع في تطوير بعض المؤشرات البايوميكانيكية لمرحلة النهوض وانجاز الوثب الطويل للشباب

الملخص

 The research introduction and significance addressed  the deep training of  muscles by  using special training methods and  styles for these activities, which mainly depend on mechanical foundations for the starting variables such as the angle of rising and the height of the center of body mass  and the speed of the hopper body. The research problem is that  there is a decline in the level of digital achievement in our country (Iraq) . The researcher used biomechanical analysis to extract research variables on a sample consisting of (7)  hoppers. The researcher  developed exercises for deep muscles using various methods . The researcher concluded that there is an development in some biomechanical indicators for the stage of advancement and the achievement of long jump among young people. The researcher recommended the need to pay attention to this type of training.