A brief summary of the research

International Sports Science Journal

A brief summary of the research

Special exercises for the explosive forces of the arms and legs in some of the kinematic variables of the front and back legs by the method of rotation at the moment of throwing and the completion of throwing the weight of youth

Assistant. Abbas ali laftah

Abstract: The importance of the research lies in this analytical study of the comparison of the final position (force mode) between players pushing the gravity by way of rotating the front and back legs by accomplishing special exercises for the explosive forces of the arms and legs.

The research aims to study the comparison of the kinematic variables of the back leg and the front leg, by pushing the weight in a rotational way in the throwing and completion position of the research sample.

While the research methodology and procedures included as the researcher used the experimental approach, the research sample was determined by four players from the National Center for Sports Talent in throwing gravity, who throw in a rotating method, and the researcher took some physical measurements and physical tests of the explosive forces of the arms and legs of the players to find homogeneity Parity between them, and the researcher used a platform to measure force, in the gravity circle and photograph the race with a speed (image / minute) camera to extract the kinetic variables of the throwing step (throwing mode) through special analytical programs, and the data was processed statistically O using appropriate statistical laws.

After presenting, analyzing and discussing the results in Chapter 4 through the tables, the researcher reached several conclusions in the conclusion, including several conclusions from it.

1 – The production of the maximum force in the hind leg is more effective than pushing the heaviness by rotating more than the fore leg, but the time of producing this force is opposite to the two legs together.

2 – The production of the maximum force in the front leg for the effectiveness of pushing the weight in a rotating way and equal or close to the production of the maximum strength of the legs from the time of production of this force is different, as the production time of the maximum force for the effectiveness of the weight, but for the forward leg is less than the background.

There were a number of recommendations, including:

1-The importance of coaches’ reliance on modern technical means to assist in training and analysis to determine the pros and cons that players may encounter during training and racing.

2-The necessity of conducting a deep study that shows the properties of the strength and time curve (for the throwing position) with the kinematic variables of all throwing activities compared to other throwing events such as discus and hammer.

Key words: explosive force of arms and legs, kinematic variables, weightlifting for youth.

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