(1) Improve the ability of the sports center to control muscles and limbs, and mobilize more sports units to participate in limb sports during exercise. Accelerate the speed and intensity of nerve conduction, and make muscle contraction faster and more powerful.

(2) Increase the volume, weight and strength of muscles, thereby increasing the energy and material reserves in muscles.

(3) Thickening of bone density, arrangement of bone trabeculae are more conducive to stress, and the strength of bone increases.

(4) The articular capsule and the surrounding ligaments are thickened, which is not easy to cause sports injuries.

(5) improve the sense of space of the body.

Team spirit, as an outstanding performance of the characteristics of volleyball, is a collection of people who are connected with the goal by * * *, and it is an organizational form in which teachers and students cooperate to complete teaching and learning under the guidance of the same classroom norms and teaching goals. In this group, everyone occupies a certain position, plays different roles, abides by the same discipline and code of conduct, is psychologically aware of each other's existence, and interacts and influences each other in behavior. Each member has the same belief and the same goal as the spiritual link, that is to say, there is a certain psychological connection and influence between team members. As teachers, we should be able to implement this spirit in teaching, better complete teaching tasks, improve teaching quality, let students work hard to complete their respective learning tasks, realize the strength and value of the team, and work hard for the interests and honor of the whole team. Through the unique practice method of volleyball, the main goal is to improve physical fitness and health level and improve physical exercise ability. At the same time, you can also learn fitness methods and knowledge, and strengthen the proficiency and comprehensive application ability of basic techniques. Let students adjust their emotions in class, reduce the pressure of study, let their emotions vent, balance their psychology and promote the healthy development of their psychology.