Test requirements for throwing solid balls:
(1), on a solid flat ground. The throwing area is 4m wide and not less than 20m long. The solid ball weighs 2000 grams.
(2) Facing the throwing direction, candidates stand behind the throwing line with their feet back and forth (or left and right), hold the ball above their heads with both hands, then lean back and throw the ball forward in the original position. At the same time, the back foot (or any foot) can take a step forward.
(3) When throwing, it is a foul for feet and other parts of the body to contact the throwing line or the ground in front of the throwing line.
(4) The score shall be judged by the vertical measurement from the trailing edge of the solid ball to the trailing edge of the throwing line, and less than 1cm shall not be counted.
(5) Candidates can try throwing three times to get the best result.
The characteristics of the solid ball project:
The solid ball is a strength and speed event, and it is a throwing event based on strength and speed as the core. There are three factors that affect the performance of a solid ball, including its speed, angle and height, among which speed is the most important factor.
The shooting angle of the solid ball also has a great influence on the throwing performance. The best shooting angle is not constant, but increases with the increase of shooting speed in a certain range. The shooting angle varies with students with different physical qualities. Boys can be older and girls should be younger. The shooting height of the solid ball is relatively stable for every student, which depends on the height and arm length of the student and the mastery of the technical movements of the project.