The key to developing the speed reserve index and the lactate threshold, which is a high indicator of the efficiency of the work of organ functions, is to improve the efficiency of the work of muscle fibers during the large accumulation of lactate within the muscles as well as their capacity to generate the energy they require by removing and breaking down lactate during high training and bodily systems, which in turn has an impact on how athletes perform during competition. The goal of the research was to determine how different types of training affected young men's ability to create speed reserves, reach lactate thresholds, and run 800 meters. A single experimental group, a pre- and post-test, and an experimental design were employed by the researcher. For the 800 m race, 15 runners under the age of 20 from the governorates of the Middle Euphrates (Kerbala, Babel, Najaf, and Diwaniyah) and Baghdad made up the research population. For his study, the researcher selected a sample of 5 runners. In light of this, 33% of the research population was represented by the sample. The researcher's most significant finding was that the activities she provided in a systematic and scientific way for research sample participants helped the research variables.