What are the characteristics of sprinters?
When the hind leg is pushed away from the starting device and swings forward, it will actively press down on the ground. The first step of landing should be as close as possible to the projection point of the body center of gravity. When the foot touches the ground, it will quickly turn to the rear pedal, and when the front leg is pushed away from the starter, it will quickly bend its knees and swing forward.
In the first few steps after the start, the feet move along two straight lines that are not far apart. With the acceleration of running speed, both feet touch the ground and gradually approach the sides of the hypothetical straight line.
Start-up technology:
The starting technique includes "take your positions". "Preparation" and "firing" (or "running") three stages.
After hearing the command of "take your positions", take a deep breath for 2-3 times, walk quickly to the starter, put your hands on the ground, step on the forefoot, the pedal of the starter, and kneel on the back knee in turn.
Put your hands on the back edge near the starting line, with your arms straight, your shoulders parallel to the starting line, your hands slightly wider than your shoulders, your fingers together, your thumbs supported in a figure of eight, and your neck naturally relaxed. Look at the front and bottom about 40-50cm, and pay attention to the "prepare" password.
After hearing the "Ready" password, take a deep breath at any time, lift your hips smoothly, at the same height as or slightly higher than your shoulders, move your center of gravity forward appropriately, and your shoulders slightly exceed the starting line. At this time, your weight mainly falls on your arms and front legs. The "ready" posture should be stable, and the feet should be attached to the baseboard, so that the attention is highly concentrated.
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