Methodology for increasing muscle mass in bodybuilding using the principle of supercompensation

The purpose of the study is to determine the effectiveness of the developed model for organizing the educational and training process in bodybuilding, aimed at muscle mass development. Research methods and organization. The study employed a comprehensive set of scientific methods: theoretical (methods of analysis, comparison, generalization of scientific-theoretical literature and scientific-methodological works on the research problem); empirical (pedagogical experiment, analysis of pedagogical experience); and statistical (methods of statistical analysis and processing of experimental data). To assess the effectiveness of the proposed innovations, a cross-sectional pedagogical experiment was conducted from January 25, 2025, to August 30, 2025. Thirty members of the male bodybuilding team of the "Champion" sports club in Kaliningrad participated in the experiment, all of whom held the first adult sports category and the Candidate for Master of Sports title in bodybuilding. The athletes' level of training was identical. Research results and conclusions. It has been established that the developed model for organizing the educational and training process is well suited for specialized training during the general preparation period for athletes who have underdeveloped trunk and arm muscles. It has been proven that the developed methodology will contribute to increasing muscle mass and reducing body fat more effectively than Joe Weider's Split system.