The aim of the research is to design a training program using the composite training (weight - balometrical) for gymnasts under (11) years and to know its effect on: 1 - the muscular ability of the two men and arms of the gymnasts under (11) years. 2 - Bone mineral density for gymnasts under (11) years. 3 - The level of technical performance of my skills (the forefoot on the hands and the landing standing on the top of the table - the side somersault with a quarter of a roll and landing standing on the top of the table) on the table jump for gymnasts under (11) years. The researcher used the experimental method on a sample of (10) gymnasts under (11) years, and the research tools: Measurement of bone mineral density - Physical tests - Evaluation of the level of technical performance on the table of the falcon - Training program using the complex training. The most important results are: 1- There are statistically significant differences at level 0.05 between the tribal and algebraic measurements of the basic research subjects in the muscular capacity of both men and arms in favor of the dimension measurement. 2 - There are statistically significant differences at level 0.05 between the tribal and algebraic measurements of the members of the basic research sample in bone mineral density in favor of the dimension measurement. 3 - There are statistically significant differences at the level of 0.05 between the tribal and the barricades of the members of the basic research sample in the level of the technical performance of the skills (the forefoot on the hands and the landing standing on the top of the table - side side with a quarter of a roll and landing standing on the top of the table) Jumping table for dimension.