The effect of simultaneous and sequential exercises of the phosphagen and lactate energy systems on a number of physical and functional variables and achievement in the 200-meter sprint for juniors | ||
| Al-Rafidain Journal For Sport Sciences | ||
| Volume 26, Issue 81, October 2023, Pages 341-382 PDF (1.4 M) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/rjss.2023.140177.1185 | ||
| Authors | ||
| omar Ahmed Al-Hayali* ; Ayad Mohammed Abdul-Allah | ||
| College of Physical Education & Sports Sciences / University of Mosul | ||
| Abstract | ||
| The research aims to: Revealing the significance of statistical differences in a number of physical variables and achievement in a (200) meters sprint for juniors between the pre \post-tests of the first experimental group that used simultaneous training for the phosphogenic and lactate energy systems, and the second group used successive training between the phosphagenic and lactate systems, as well as identifying the differences in the variables mentioned between the two research groups that used simultaneous and successive training of the phosphagenic and lactate systems in the post-test. The researcher used the experimental approach due to its suitability and the nature of the research. The research experiment was carried out on a sample of junior short-distance runners in Nineveh Governorate for the 2022 sports season, they were (12) runners. And this sample was divided into two experimental groups in an intentional way, with (6) runners for each group, The homogeneity of the research sample in the variables of chronological age, training age, height, weight. Equivalence was also conducted between the two research groups in physical variables and achievement in the (200) meter sprint. An experimental design used two equal groups, deliberately selected and distributed, with two pre\ post-tests. The research procedures included the design of two trainings, the first is the simultaneous training of the phosphagenic and lactate energy systems, and the second is the successive training between the phosphagenic and lactate system .The researcher conducted two exploratory experiments, the first was to conduct a training unit and the second was to perform tests. After that, the pre-tests were conducted, then the two simultaneous and successive trainings were implemented. The implementation of the two trainings took (9) small cycles consisting of two medium cycles, and each medium cycle contained (3) small cycles with the formation of a load movement (2: 1) in each medium cycle, with a ratio of ( 4) Training units in one small cycle, after which the post-tests were conducted with the same steps and procedures that were followed in the pre-tests. To extract the results, the statistical program (SPSS) was used, and the following statistical methods were relied upon: (the arithmetic mean, the standard deviation, the (T) test for related samples, and the (T) test for independent samples), in addition to the percentage, the torsion coefficient, and the effect size law (Cohen de) and (eta square) The researcher reached a set of conclusions, the most important of which are the following: -The simultaneous training of the phosphagenic and lactate systems carried out by the first group made significant progress in all the physical variables dealt with in the research, namely (maximum transitional speed, prolonging of speed, explosive strength of the two legs, strength distinguished by the speed of the legs, and prolonging of the strength of the two legs) and significant progress in the achievement of a (200) Meters sprint, and the effect size was large (L(. - The successive training between the phosphaginic and lactate systems implemented by the second group made significant progress in all the physical variables that the research dealt with, namely (maximum transitional speed, prolonging of speed, the explosive power of the two legs, strength distinguished by the speed of the legs, and prolonging of strength for the legs) and significant progress in the achievement of a (200) meters sprint, and the effect size was large (L( . - Despite the significant progress that occurred for the two research groups after the implementation of the simultaneous and successive training in all physical variables, and the achievement in the (200) meters sprint, the statistical results did not show any significant superiority of one of the two groups over the other in all the mentioned variables, but there was a large effect size ( L) for the strength characteristic of the speed of the legs, and a medium effect size (M) for the speed and force prolonging of the legs, and a small effect size (S) for the explosive force of the legs, and all the effects were in favor of the simultaneous training group. | ||
| Keywords | ||
| exercises; simultaneous; sequential | ||
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