Solid ball is an auxiliary training equipment for sports training, not a formal competition, but generally used as an examination item for students. Shot put is one of the official throwing events in track and field. The weight of a solid ball is generally 2Kg. Men's shot put weighs 7.26 kg, and women's shot put weighs 4 kg.
The outer surface of the solid ball is hard plastic or rubber, and the inner filler is sand. The outer surface of the shot put is wrapped with iron, and a certain weight of lead is filled in it. The solid ball needs to be held in both hands and thrown in the throwing direction. The shot put can only be held in one hand. After holding the ball, the left side of the body faces the throwing direction and rotates in the throwing direction. Finally, the right shoulder pushes forward, and the right arm quickly straightens forward and dribbles upward.
Brief introduction of shot put
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.