First, the backstroke tread adopts arc run-up.

First, make sure that the jump point is about 30 cm outside the middle of the crossbar, first walk 5 steps to the right, which is point A, then walk 6 steps to the right, which is point B, and then walk 7 steps to point C. From the point of C-B-A run-up, section C-B is a straight run-up and section B-A is an arc run-up. After repeated fosbury flop, it means that the back faces the beam and all parts of the body pass the pole in turn.

2. Fosbury flop technique includes four stages: run-up, take-off, pole crossing and landing. Each stage is closely related and interactive.

1. Focus on the movements on the pole, and pay attention to controlling the timing of hips forming a "bridge" shape on the pole during practice, so that it can last for enough time to prevent "sitting" on the pole.

2. After learning the pole vault technique, you should do more auxiliary exercises. Pay attention to the safety performance of equipment and strengthen protective measures.

3. Pay attention to the organic combination of run-up and take-off.

4. Learn the measurement method of run-up, master the run-up technology from straight line to circular arc, and determine the run-up point.