Applying exercises according to the mass moment of inertia and its impact on some types of strength and achievement for long jumpers

Abstract

Remarkable scientific progress in the field of jumping, especially in recent years, was touched upon, and the focus was on training by changing the positions of the body and its parts during flight in the broad jump, as the researcher believes that the use of this method may affect the development of the special strength of the players in the broad jump, which is reflected On the development of the level of the stages of the performance of the broad jump on the development of the special character of the players, and the effectiveness of the broad jump is one of the athletics activities that depend directly on strength and speed at the same time, and the researcher dealt with the aspect of strength by changing the position of the player's body in order to achieve the integrated conditions for performance that will inevitably enhance the achievement What is good for him is that strength training by changing the position of the body and overcoming resistance by using auxiliary means, means that have not been confirmed according to the mechanical principles in the field of training for broad jump players in strength training in athletics, so the researcher believes that this topic is a scientific problem that can be addressed and studied. The aim of the research is to identify the impact of training according to this method in the positive development of the value of the moment of inertia for each stage of the broad jump, and the research hypothesized that there are statistically significant differences between the pre and post-tests in the value of the moment of inertia for each stage of the broad jump in the two research groups, which included This section presents the results that were reached from the pre and post tests, which were applied to the research sample, and scientific results were reached and then discussed. The level of technical performance (technique) developed in the experimental group in the post tests after using the exercises, which indicated the effectiveness of these exercises. In achieving a good level of motor cohesion, no improvement was shown in the technical level in the control group. The conclusions of the research came, and this means the effectiveness of the impact of exercises according to the principle of the body's moment of inertia in the development of transport between the different parts of the body.