Research on the application of sports biomechanics in optimizing the effect of physical training

This paper discusses the application of sports biomechanics in optimizing the effect of sports training, finds out the existing problems through quantitative evaluation of athletes’ technical movements, and puts forward improvement suggestions to maximize the training effect. In this study, 12 professional long jumpers were taken as the object, and advanced equipment such as high-speed photography, computer analysis and photoelectric timer were used to record the long jump movements of athletes in all directions, and the biomechanical parameters were analyzed. The results show that after four weeks of personalized training, the key performance indexes of athletes such as take-off speed, horizontal displacement, vertical jump height, landing technique and muscle strength have been significantly improved, and the average long jump performance has been significantly improved. Principal component analysis (PCA) reveals the key biomechanical factors that affect the performance of long jump, including take-off speed, horizontal displacement and vertical jump height. In addition, hierarchical cluster analysis helps to identify the technical characteristics and training needs of different athletes, which provides a basis for making personalized training plans. The results show that the application of sports biomechanics not only improves athletes’ performance, but also helps to reduce sports injuries and prolong sports life, and provides scientific training guidance for coaches. This study has important theoretical and practical value for promoting the development of sports science and improving the level of competitive sports.