I am a senior high school student who wants to be a sports student. I am 180cm tall and have a standing long jump of 2.2 meters, which is very small. I was 2.2 meters a few years ago. I feel so big...

It’s okay. If you dare to change yourself, you are better than many people. Standing long jump is mainly a manifestation of body coordination and explosive power. As long as you train on these two aspects, the results will be quick. So-called The coordinated force means that the force is exerted from the arms first, and the hands drive the body, then to the waist, then to the hip joint, then to the thigh, then to the knee, then to the calf, then to the ankle joint, and finally to the toes. This is the standing long jump. The anatomy of force generation, each joint superimposes the force in sequence, fully stretches each joint, and finally explodes. First practice the movements and feelings, and then be able to explode instantly and exert force correctly. That’s almost it. If you don’t understand anything, You can continue to ask me questions and I will provide you with quality answers