The research's objectives are to design specific strength-training workouts and to determine how these activities affect various heart muscle measures and functional indicators. In order to address the nature of the research challenge, the researchers for both research groups employed the experimental technique. Young athletes from the Dhi Qar Governorate who play for Al-Nasr Club represented the research community in the 2022–2023 season. There were twenty players total, split into two groups of ten players each—the experimental and control groups. The training units are applied by the team trainer for the control and experimental groups, and the two studies carried out homogeneity and equality in the study variables. The training program lasted for twelve weeks, starting on Monday, June 17, 2023, and ending on Sunday, September 17, 2023. The curriculum was part of it. 36 training units, or three sessions every week. The researchers came to the conclusion that the experimental group, which depended on the exercises they had planned, clearly outperformed the control group in the post-test of a few functional indicators and heart muscle measurements. Every field test and measurement method was completed. It allows us to get the required data then conduct appropriate statistics, classify them in the form of tables, analyze and discuss them, and draw appropriate conclusions and recommendations from the results achieved.