When starting, your feet should be shoulder-width, with your front feet slightly forward, your toes facing the starting line, your back feet behind, your toes touching the ground, your body leaning forward, your hands at the starting line, your elbows slightly bent, and your fingers clenched. Launching the starting line: After the starting gun goes off, the front foot should be pushed forward vigorously, and the back foot should respond as soon as possible to keep up. Arms should be waved forward, elbows should be slightly flexed, and arms should not exceed shoulder line.
100 meter start is introduced as follows:
The start-up process includes three stages: "in place", "preparation" and "ignition". After hearing the password of "take your positions", kneel down, put your hands and fingers together, put your thumb in a figure of eight on the back edge of the starting line, step on the starter in turn, put your feet close to the starter and touch the ground with your toes.
The back and neck are naturally relaxed, the arms are straight, the shoulders are broad, and the hind legs and knees support the body. After hearing the "prepare" command, the hips are raised to the same height or slightly higher than the shoulders, and the shoulders slightly exceed the starting line. The weight mainly falls on the arms and front legs, the front and rear calves tend to be parallel, and the feet are close to the feet of the starter.
The whole movement needs coherence, coordination and strength, as well as a high degree of concentration. After hearing the gunshot, he quickly pushed his hands off the ground and bent his elbows to swing back and forth. The legs hit the starter in turn, making the body move forward and upward, and the hind legs quickly bend their knees and swing forward and upward.
At the same time, the front legs push the hips, knees and ankles quickly and forcefully, and push the body forward in a forward posture. Run faster after starting. The accelerated running after the start is the running stage from the hind legs to the way after the start. Generally, the distance is about 25~30m. After the departure, the two arms swung hard, and the swing range was large. Push your legs alternately, the step length increases, the step frequency gradually accelerates, and the place where your feet touch the ground gradually becomes a straight line.
The upper body gradually rises and naturally enters running on the way. The task of running on the way is to keep playing and keep high speed to the finish line. Running is a periodic activity. In a running cycle, it includes the following action stages: pushing backward and swinging forward, flying, landing buffer and so on. Technical essentials and training methods of sprint.