AUTHOR(S): Natiq Abdulrahman Werytha

ABSTRACT:
The research aimed to classify young weightlifters according to the genetic markers of carboxylate transporters. (MCT4), preparing exercises that suit the characteristics of junior weightlifters, who carry a type of carboxyl transporter (MCT4), and identifying the effect of the exercises b Genetic markers in _ The endurance of muscle strength and the level of lactic acid for them, and the experimental method of the two experimental groups was adopted on a sample of young weightlifters of the Iraqi national team for the sports label (2021) Of them (11) young, they were all selected by a comprehensive inventory method by (100%) from their community, and then they were divided deliberately after the procedures of analyzing the genetic markers for carboxyl transporters (MCT4) into two experimental groups, and specialized trainings were applied in each of the two experimental groups in an iterative manner for a period of time. (10) consecutive weeks with the total loads placed on them (30) training units, and the difference between the two groups was for juniors with type (AT) in the first experimental group, and type (AA) in the second experimental group, and after the end of the experiment and the results were processed using (SPSS) system The conclusions and applications were that the difference in genetics among weightlifters had a role in the difference in their receiving weight training and its positive effects on them in both increasing the development of muscular strength endurance and decreasing the concentration of lactic acid, and that weightlifting beginners with the genotype (AA) Carboxyl carriers of the gene (MCT4) were better than those of the (AT) genotype. In increasing the development of endurance of muscular strength and the lack of concentration of lactic acid, it is necessary for the national teams to rely on the principle of individual sports training, and to take into account the privacy of each weightlifter by accrediting studies of molecular medicine, and to increase the knowledge of trainers to support their planning of appropriate exercises for lifters, especially the young ones.

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