If it is shot put for school, the weight of shot put for primary school girls is 3kg and that for boys is 4 kg; The weight of shot put for girls in junior and senior high schools is 4kg, and that for boys is 5kg. Throwing the shot seems to be a simple action. As long as the arm strength is strong enough, you can throw the shot with force. In fact, the shot put test is not only the upper limb strength, but also many other requirements.
In the process of throwing, the transmission of strength is a complete transmission path, from feet and legs to waist and abdomen, and then to shoulders and neck, arms, wrists and fingers. The transmission of power cannot be interrupted, and it needs the whole body to coordinate. Therefore, it is necessary to practice more and master the coordination of the body in order to explode the greatest strength. Throwing only with the strength of wrist and arm, no matter how long you practice, you can't improve your performance.
Rules of shot put competition
After the athletes enter the stadium, lots are drawn to determine the order of the competition. When the number of athletes is less than or equal to 8, the draw order is the competition order. > 8 athletes, each athlete tried to throw three times and got the best result. The top eight athletes entered the next stage of the competition. Before the start of the game, you can try throwing and practice in the order of drawing lots.
When entering the official competition, the top eight players throw in order, taking turns throwing in order, once for each round, and three rounds of * * *, achieving the best results. If the rules are violated, the results of this round will be invalid, and the results will be re-determined in the next round. Before the game, the athletes lined up in order and entered the throwing circle with the flag raised by the referee. The athletes threw the ball under the instruction of the referee. After the throwing, the referee will raise the flag according to whether the score is valid or not.