Five-character formula of shot put

Five-character formula of shot put: push, turn, stand, push and dial.

Pedal: push the right leg hard to the ground; Turn around: push your right hip forward; Quite: the body is straight; Push: chest belt arm pushes forward; Pinch: The fingers of the wrist grab the ball hard. Shot put is one of the track and field sports that uses the strength of human body to push a certain weight of shot put from shoulder to arm. Shot put originated from ancient human activities of hunting animals or defending attacks with stones.

Modern shot put started from 65438 to 2004, when European artillery pushed and threw shells in their leisure time in the 1940s, and gradually became a sport. Men's and women's shot put were listed as Olympic events in 1896 and 1948 respectively. In 1950s, PARRY OBRIEN, an American athlete, invented the back sliding shot put technique, which was called "a revolution in the history of shot put".

The highest organization of shot put in the world is World Track and Field, which was founded in 19 12 and headquartered in Monaco, with the aim of developing world track and field sports. The shot put should be made of hard iron, copper or other metals with hardness not lower than copper, or its shell should be made of this metal, and its center should be filled with lead or other metals.

The shape of the shot put must be spherical, the surface should not be rough and the joints should be smooth. Only the equipment provided by the organizing Committee is allowed to be used in the competition, and no changes are allowed during the competition. Athletes are not allowed to bring any equipment into the competition venue. In the official competition, the weight of men's shot put is 7.26kg, and the diameter is 1 1- 13cm. The women's shot put weighs 4 kg and has a diameter of 9.5- 1 1 cm.

Rotating shot put technology;

Spinning shot put holds the ball like back sliding shot put. The athlete's back is opposite to the throwing direction, and his feet are slightly wider than his shoulders. The elbow of the ball holding arm is spread outward, flush with the shoulder, the upper body leans forward slightly, and the upper body rotates left and right as a pre-swing. After the forward swing, take the left side of the body as the axis, and the left knee and left shoulder begin to turn left. Before the body turns to the throwing direction, the right foot should leave the supporting point as late as possible.

In the process of shifting the body's center of gravity from the left leg to the right leg, there is almost no suspension, and the right foot should be stable and elastic. After the right foot touches the ground, the left foot should touch the ground as soon as possible, so as to form the maximum torsion state of the trunk and provide favorable conditions for the final turning force. Finally, there is not much difference between hard shot put and sliding shot put, and more is the use of rotating momentum.