Have you ever seen a sprint? When the starter gives the password, the athlete crouches behind the starting line in a certain posture. As soon as the gunshot rang, it "bounced" like a compressed spring suddenly loosened. You may ask: Why did you squat at first? Can this help you run faster?
In labor, when we want to push a heavy thing or car forward, at first, people always squat naturally. The heavier the thing, the lower they squat. Why is this happening? This has to start with the driving force of the human body running forward. The power to push the human body forward is the strong contraction of our leg muscles and the supporting reaction force generated by the ground. Under the same conditions, the greater the strength of the two legs, the greater the forward driving force generated by the ground.
Starting is a sudden transition of human body from quiet to fast running, and it needs to get the maximum forward power in the shortest time in order to play the highest speed after starting. This requires the muscles of both legs to exert their maximum strength to push the ground at the start. Squatting at the start creates conditions for muscles to exert their maximum strength, because muscles have such a "temper"; Before forced contraction, stretch properly within the physiological range, and you will be able to exert greater strength during contraction. Squats with proper starting posture can lengthen the muscles involved in the push-back. When the gunfire rings, these muscles will contract violently, producing great explosive force, pushing the human body to run forward.
The squat posture at the start can also make the center of gravity move forward as far as possible, make the center of gravity move forward away from the leg support point at the start, and reduce the back pedal angle at the start, which is conducive to obtaining greater forward strength.
The squat posture at the start of sprint is called "squat" start. Because of its above function, sprinters all adopt this posture at present. However, with the continuous development of sports technology, there may be a more reasonable and favorable starting posture, which we created in practice.