Biological analysis of shoulder joint muscle strength during volleyball spike specific physical training

Volleyball spike requires extremely high shoulder joint muscle strength. Traditional research methods are single, with insufficient sample size, lack multidimensional analysis and long-term training effect evaluation, and have not fully combined biomechanical and physiological theories. This article combined biomechanical and physiological theories to collect field data and used a three-dimensional motion capture system and surface electromyography technology to analyze the performance of shoulder joint muscle strength in spiking. The experimental results show that Integrated Biomechanics and Physiology (IBP) is significantly superior to other training methods in improving the maximum strength, endurance, and muscle activation of the shoulder joint. Specific data show that after IBP training, the maximum strength of the shoulder joint increased by 50 N, and the endurance increased by 19.6%, and the muscle activation increased by 13.5%. Studies have shown that the IBP method has great potential for application in optimizing special physical training, providing a scientific basis for athletes’ physical training.