Exploring physical education courses that promote students\u27 physical health and the learning, practicing, and competing system is a topic of concern for physical education researchers. Currently, research on the topic mainly focuses on the student object aspect, and there is a lack of research on the subject aspect. This study is based on system and group dynamics theory, optimizing the construction of a learning, practicing, and competing physical education system, aiming to enrich the physical education and training mode in universities and promote the development of students\u27 physical health. Method: This study adopts the logical analysis method to systematically analyze the overall, interrelated, hierarchical, and dynamic characteristics of the learning, practicing, and competing physical education system. The case analysis method takes Northwestern Polytechnical University as a case study for analysis. Based on system theory, there exists a systemic and interactive relationship between physical education and the “five educations” integration of morality, intelligence, aesthetics, and labor; Within the physical education system, there are multiple departments, personnel, and levels of characteristics such as student affiliation, student work management, and student sports training in the subject aspect, while there are ontological attributes such as different sports needs and physical conditions of students in the object aspect; Based on the theory of group dynamics, this study explore the characteristics of different subjects and constructs a physical education system that is suitable for the collaborative development of learning, practicing, and competing in universities, taking into account multiple dimensions such as system, organization, content, form, and evaluation, in accordance with the objective attributes of students; Through the analysis of five years of physical education cases at Northwestern Polytechnical University, the compliance rate of students\u27 physical health has increased from 88.03% to 97.63%. The five-dimensional collaborative learning, practicing, and competing physical education system has high scientific, systematicity, and operability. Integrity and interactivity are the foundation for building a physical education system in the “five educations” integration of universities. Based on the characteristics of the internal subject and object of the physical education system, the optimized and constructed multi-dimensional collaborative development system of learning, practicing, and competing in terms of system, organization, content, form, and evaluation is a scientific and feasible physical education system
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