The effect of ball retention exercises according to the tactical (Rondo) on a functional variables of advanced soccer players

The aim of the research is to find out -Exposing the effect of ball retention exercises according to the tactical Rondo on a number of functional variables for advanced soccer players.-To identify the significance of statistical differences in a number of functional variables between the experimental and control groups in the post-test. The researcher used the experimental approach for its suitability and the nature of the research, and the players of Samil Sports Club were identified as a sample for football research, and it consisted of (33) players, and (20) of them were selected representing the sample, and it was divided into two groups (experimental and control) randomly using lots and by (10) players for each group.- The homogeneity and equivalence of the two research groups was verified with the variables (age, height, mass, and the variable a number of functional variables). The researcher used the experimental design for the two groups with a pre and post test, and the means of data collection included personal interviews, questionnaires, tests, measures and scientific observation.The researcher used the following statistical methods: (percentage, arithmetic mean, standard deviation, t-test for related and independent samples, simple correlation coefficient (Pearson), mode, torsion coefficient) and the statistical bag (spss) was used to process the data. In light of the results, the researcher reached the following conclusions:-The training curriculum for ball retention exercises according to the (Rondo) plan implemented by the experimental group developed in the two variables (anaerobic capacity and fatigue index) in favor of the experimental group-There were no significant differences between the two groups (experimental and control) with ball-keeping exercises according to the tactical (Rondo) variable in the (blood lactate) variable.