Özet:

The purpose of this paper is to Preparing forms of training loads of different intensity in the training unit in developing special endurance capabilities and achieving 50-meter freestyle swimming for juniors,the researcher used the experimental method with the pre-and post-test for the experimental and control groups, and the research community was determined for the swimmers of the (Al-Ḥashd ash-Sha bi) Sports Club for juniors for the event of 50 meters free swimming for the 2021 season, numbering (12) swimmers. (8) A swimmer for each group. A regulated training program with forms of training loads of different intensity was applied in the training unit to the experimental group for a period of eight weeks, with three training units per week. The SPSS statistical package was used to process the data and obtain the results, from which the researcher reached the most important conclusions that the forms of loads Training of different intensity in the training unit had a positive effect on developing special endurance capabilities and achieving 50-meter freestyle swimming for juniors.  

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