Long jump, also known as sprint long jump, is a jumping event in track and field. It includes run-up, take-off, flight and landing. Athletes run up in a straight line, take off with one foot before and after the springboard, go through the flying stage, and then land their feet in the bunker. In the competition, the ranking is determined by the distance of jumping.
The take-off leg on the pedal goes through three stages: putting the foot, buffering and pedaling. When the take-off leg is off the ground, should the swing arm and swing leg be coordinated? Swing action, its main points are to raise your head, hold your chest, lift your shoulders and pull out your waist. Generally speaking, air posture can be divided into three types: squatting posture, standing posture and walking posture.
No matter what kind of air posture is adopted, both legs have a "stepping on the air" action in a striding posture at the moment of taking off from the ground. Squat requires that before landing, try to lift your legs to your chest and land high.
When standing, you need to lower your swinging legs and arms, fully expand your hips and chest, then tuck in your abdomen and lift your legs to the ground. The walking mode adopts two and a half steps and three and a half steps in the air. It is required to stride back and forth in the air to change legs and coordinate the two arms.
Landing movements generally include "forward and backward buffering method", "lateral and backward buffering method" and "sitting hip buffering method". Its purpose is to maintain the balance of the body's center of gravity and avoid injury accidents.