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Abstract

The research aims to determine the critical speed of the 400-meter runner, and prepare exercises for the critical speed and mechanical ability to test the maximum speed of the 400-meter runner under the age of 20 years, And to identify the effect of these exercises in developing the special maximum speed and the completion of the 400m ran for the research sample, The two researchers followed the experimental method by designing one group with a pre and posttest, The research community was identified with the players of the National Center for the Care of Sports Talent in Athletics of the Ministry of Youth and Sports - Baghdad, who are regularly training for the season (2020-2021), The research sample was chosen in a practical way, where the research community of (8) youth players in a 400-meter sprint, Two (2) players were selected randomly by lottery to conduct the pilot experiment on them, The number of the sample for conducting the research experiment on them was (6) players, The pre and post tests were applied to the research sample, And educational units were prepared for the research sample and included (36) training units with a duration of (12) weeks, and every week three training units and the time of each training unit was (90) minutes, The training curriculum was applied in the main part of the educational and applied division and relied on the statistical program (spss) to extract the results, The research came out with a set of conclusions, including: 1- The exercises that determine the critical speed and mechanical ability contributed significantly to the development of the achievement of the 400-meter freestyle youth ran. 2- The development of the research sample through the use of critical speed exercises and mechanical ability led to the development of the special maximum speed, which led to a reduction in the achievement time for the effectiveness of the 400-meter freestyle sprint.

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Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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