The research aims to design a training program using strength training for the muscles of the center and to know its effect on some physical variables and the digital level for triple jumpers from 16-18 years old. The researcher used the experimental approach due to its suitability to the nature of this research through the experimental design using the pre and post measurements for one group. The research community represents triple jumpers in the age group of 16-18 years in Sharkia Governorate who are registered in the records of the Egyptian Athletics Federation for the 2018/2019 sports season, and the research sample was chosen by the intentional method of triple jumpers in the age group of 16-18 years from the Youth and Sports Club in Sharkia Governorate Whereas, the core sample consisted of (8) young people who were regular in the application of the training program, in addition to the sample of the survey studies from the national project for young people, and their number was (7) young people from the same research community and from outside the basic research sample, so that the total sample of the total is (15) young people. The researcher recommends the following: 1- The importance of applying the proposed training program using strength training for the muscles of the center because of its positive impact on developing some physical variables and the digital level of the triple jumpers. 2- Conducting a similar study to find out the effect of strength training for the muscles of the center on variables in different age stages, taking into account individual differences, so that we can reach the youth to the highest levels of championship.