1, facing the throwing direction, stand high. Grab the ball with your right hand. Before the forward swing, the upper body stretches, and the left arm naturally stretches forward as the first muscle experience of the final exertion. Turn your body 90 degrees in the throwing direction and lean forward slightly to improve the twisting effect of waist muscles, and the center of gravity falls on your left foot.
2. At the beginning of the pre-swing, the left foot is pedaled to the ground, and the waist muscles drive the upper body to rotate 270 degrees in the opposite direction, forming a double-support surpassing instrument technology with the center of gravity shifting to the right foot, thus improving the support response effect.
3. After the pre-swing is over, the left leg is supported, and the right leg begins to push and stretch quickly, and the ball is ejected by spreading hips, holding out the chest, vibrating arms, stretching wrists and fingering.
In the biomechanical sense, it has the following characteristics:
1. The accurate control of the waist torsion effect at the beginning of the pre-swing lays the foundation for a large-scale rotation.
2. At the end of the pre-swing, increase the reaction force of the right leg support to make the pedaling effect obvious.
3. The kinetic energy obtained by the body in the pre-swing process is stored by twisting the body and surpassing the instrument, and in the final exertion stage, it acts on the shot put with the force of the leg trunk and the rapid pedaling of the throwing arm to improve the shot put.
4, can be used alone, can also be used as a transition technology of backward sliding, improve the consistency of action. Due to the improvement of the reaction effect of support, the degree of body torsion is increased and the hand speed is improved. Finally, the requirements for leg strength are higher.
5. Suggestion: Shot put technology embodies the technology of teaching students in accordance with their aptitude and speed, and mainly emphasizes the consistency and integrity of action. It can not only be used as the teaching content for most students, but also provide opportunities for discovering talents; It can also be used as an auxiliary means for amateur training, transitional skills and improving sports performance; It can also be used as an improvement measure for professional athletes to improve their consistency.