First of all, run-up:
Key points: During the run-up, the forefoot touches the ground, the arms naturally swing back and forth, the body leans forward slightly, runs in a straight line, and gradually accelerates from slow to fast, and gradually lifts the upper body in the last few steps before boarding, so as to prepare for boarding correctly.
Step jump: it is composed of the upper board and the take-off part, and it is one of the most important parts to support the jump.
Action method: In the process of taking off and flying with one foot, the swinging leg swings forward actively, and the back kick quickly approaches the swinging leg, exceeding the forward speed of the shoulder. When boarding the board, the legs naturally straighten forward and close together, and use the "washboard" of the forefoot to make a powerful stride jump. At the same time, the arms swing upward from back to front, the shoulders are lifted to the waist, the knees are straightened, and the feet are stretched straight, so that the body jumps forward.
3. Flying (including pushing hands): the first flight (after taking off but before pushing hands); Pushing hands; The second flight (after pushing the hand but before landing).
Two kinds of wrong behaviors should be prevented in practice. Push the hand at the same time, support first, and then take off from the board.
4. Landing: After the exhibition is vacated, the body falls close to the ground. After landing on the ground with the forefoot, immediately transition to the whole sole, quickly bend the legs and abdomen, and make an elastic semi-squat. Hold your head up and chest out at the same time, and lift your arms horizontally or obliquely.
Extended data:
Support jump, also called Li Song jump.
Li Song bar can be divided into three actions: bending Li Song bar, straight Li Song bar and straight Li Song bar to turn 360. Bending, also known as cartwheel somersault 90, bending somersault180, is one of the difficult movements to support jumping.
First, the technical method of its action is: after taking off, the upper body turns down, while the arms stretch forward, and the waist immediately exerts force to drive the lower limbs to swing upward. At the moment of handstand, your feet are pushed up and down, and your feet are violently pushed away. Immediately pull the left shoulder backward, turn the head to the left, and at the same time actively lift the shoulder to stand on the upper body, and then brake the head and heel (suck with your legs).
2. When the air turns forward into a supine posture, the foot surface immediately drives it to stretch forward and turn upward. At the same time, the left arm back belt rotates to the left to complete the rotation of180, and then the arms are lifted, the head is propped up, the shoulders are straightened, the hips are tightened, and the legs are stretched, ready to land.
Baidu Encyclopedia-Li Song Article