To analyze the causes of muscle soreness and injury during precompetition training in university sports meet and taking the DOMS mechanism as the main line to find a reasonable way to deal with the muscle pain and prevent the injury, 125 college students participating in stadium games training were randomly selected. The muscle pain and injury during the training were obtained through interviews, mathematical statistics, and literature review. The information of exercise load, pain and injury type, exercise ability, pain degree, and recovery time was comprehensively analyzed to study the mechanism of pain and injury formation. Muscle pain and injury occurred in precompetition training, especially in freshmen. After heavy load, muscle soreness occurred, causing DOMS and developing into muscle injury. Affected by the external climate environment, sudden muscle soreness and injury are a gradual transformation process with DOMS as the boundary, which is the comprehensive result of exercise load, water, energy, and material metabolism; control load intensity, water supplement, and energy and material supplement can effectively prevent the occurrence of DOMS, and timely recovery after DOMS symptoms can effectively avoid the occurrence of sports injury. According to the different intensity of exercise, it is of great significance to clarify the mechanism of DOMS and explore effective prevention methods for physical education and sports training.
This paper explored the integration and development of intangible cultural heritage sports and national fitness from the perspective of organization. The research shows that the intangible cultural heritage of sports based on folk custom and tradition can enrich people’s spiritual and cultural life and the content system of national fitness. The construction of national fitness system with Chinese characteristics is helpful to protect the intangible cultural heritage of sports. Conclusion: We should strengthen the construction of grass-roots sports organizations, improve the degree of organization, explore the sports methods in line with national conditions, and organically integrate the protection of sports intangible cultural heritage with the national fitness system.
By using the methods of literature, mathematical analysis, and comparative analysis, this study expounds the origin and development history of the culture of Hydrangea and the movement of throwing Hydrangea, studies the representative technical theory of high-pole throwing Hydrangea, and makes a comparative analysis with the angle, speed, and other technical movements of throwing Hydrangea in teaching and training, as well as the trajectory data of the arc top height, circle range, and landing point of the parabola of Hydrangea. This study discusses the technical problems existing in the high shot Hydrangea competition of the two students Games in Guangxi. The research shows that projection technology is the foundation and core element of the survival and development of high-pole throwing Hydrangea; the existing projection technology has a certain positive effect on teaching, but it has shortcomings for high-level training and competition. The research shows that throwing technology is the foundation and core element of the survival and development of high-pole throwing Hydrangea; the existing throwing technology has a certain positive effect on teaching, but it has shortcomings for high-level training and competition. The best shooting angle is 640 ≤ α ≤ 720 , and the speed is 13.04 m / s ≤ v 0 ≤ 13.70 m / s , which is a range of numerical matching between the two; the core problem of shooting technology is to shorten the shooting cycle and running distance through the cooperation of the best shooting angle and speed, so as to lay the foundation for improving the hit rate per unit time. Suggestions. Build national sports culture, improve the technical level, and promote the development of national sports to a higher level.
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