الإعداد الأرضي و أثره في تحسين طول ضربة الأطراف العلوية في سباحة الزحف على البطن عند الفئات الصغرى (أقل من 12سنة)‎

الملخص EN

The study aimed to clarify the importance of land preparation for the small category and its effect on improving the amplitude of a cycle of the upper limbs in crawl swimming, by proposing an annual training plan in which researchers used the experimental method because it is suitable for the nature of research.

The study was conducted a sample chosen in deliberate manner, consisting on 14 swimmers from buoys category belonging to the USMA sports club of Algiers.

After collecting the results of exams, it was processed by the statistical packaging program (SPSS),, standard deviation, the measurement of the standard grade and the test of “t” to mesere differences.

After analyzing it, it was found that the ground preparation had a positive effect in improving the amplitude of a cycle of the upper limbs of small category crawl swimming within a distance of 25 meters.