Common wrong actions, causes and correction methods when climbing pole 1 landing. Sitting on a pole, you can't send your hips. The reason is that after flying, I dare not shoulder pad, arm abduction and head back. After take-off, the swinging legs can't be put down, and the hips can't come out.
The correction method can be to send buttocks on the mat, stand upside down to form a bridge, pass the pole on the high platform in situ, and run over the pole. 2. The reason why the body leans over the crossbar is that the body falls prematurely before taking off, which affects the rotation along the longitudinal axis, and the swinging force of the swinging leg along the crossbar is insufficient.
The correction method adopts run-up and take-off before pole vault, and pays attention to the swinging direction of swinging legs to prevent the body from falling prematurely. 3~5 steps of run-up and take-off, the swinging leg touches the high object and rotates 90~270 degrees along the longitudinal axis, and the swinging leg swings inward forcibly.
3. Reasons for rubbing bars on the back of thighs and calves: After taking off, the thighs and calves are not gathered enough, and they are not gathered and unfolded in time when passing the bar. Corrective method: do the back-over-the-pole practice before pole vault, and pay attention to the timing of lifting hips and retracting legs in the air when passing the pole.
The reason why the head and shoulders hit the mat first is that the landing height is too high (the mat is too low). Retract your thighs too early and like to roll back.
Correction method: heighten the sponge pad, do back-crossing exercises in situ, and pay attention to correct the mistakes of incorrect falling position and excessive relaxation when landing. When landing, put your hands on the ground first, which causes the fear of losing balance when flying with a pad on your shoulder.
The correction method is to put a back cushion on your shoulder and do the in-situ fosbury flop with or without a pole at a higher take-off position. Edit the technical elements of the run-up in this paragraph I. Technical characteristics The main feature of the run-up in fosbury flop is the arc run-up, and the run-up line is generally "J". Its advantages are: 1. The preparatory section of the run-up is a straight line or a curve with small curvature, which is convenient for acceleration and hitting speed.
2. The transition to the arc is smooth and natural, which can avoid stopping or slowing down. 3. The curvature of the circular arc changes from large to small, so that the internal frequency of the body is gradually increased.
4. The last step forms an angle of about 20 degrees to 30 degrees with the crossbar to ensure that the human body has an appropriate vertical displacement distance relative to the crossbar after flying. (2) Run-up technology The task of run-up is to obtain the necessary horizontal speed and create conditions for improving the take-off effect and smoothly crossing the bar.
Generally, the run-up of fosbury flop is 8 to 12, which is divided into straight run-up section and arc run-up section. 1. Straight-line run-up technique: Similar to short-circuit running technique, during running, the body's center of gravity is high and stable, the upper body leans forward appropriately, the back pedal is full and powerful, the legs are lifted actively with the forward swing, and the two arms swing harmoniously; 2. Arc run-up technique: the body gradually leans inward, increasing the swing range of the outer leg arm, and keeping the head and trunk in a straight line.
The whole run-up process should have obvious sense of acceleration and strong sense of rhythm, especially the last few steps are gradually accelerated, and the last step is the fastest. Second, the problems that are easy to appear in the run-up teaching of fosbury flop (1) improper curvature of the run-up arc: in the learning arc run-up, the problem of incorrect run-up arc often appears, mainly including the following mistakes: error 1: In the run-up, the introversion of the body does not increase gradually, but the body is the largest when it enters the arc at the beginning, and it stands upright when it runs to the last two steps, which is manifested in the run-up route.
Mistake 2: In the run-up, there is no change in introversion, which is manifested in the unreasonable phenomenon of running arc on the run-up route. Mistake 3: In the run-up, the body turns inward from constant to large, which shows the unreasonable phenomenon of turning around in the run-up.
The reason for the above mistakes is that students fail to master the technique of arc run-up, form a correct arc, and rely on proprioception to control the introverted changes of the body. The method of checking errors: check whether the students' run-up points and routes are correct, and check each step according to the technical requirements of arc run-up. Usually, the turning point (commonly called turning angle) of each step should be gradually increased.
2. Rules of high jump in field events
Rules of field competition: draw lots to arrange the order of athletes' trial jump in high jump competition.
Athletes must take off with one foot. Before the start of the competition, the referee should announce the take-off height and the lifting height of the crossbar after each round of competition. Only 65,438+0 people remain in this plan until the competition.
Unless there are only 1 athletes left in the competition, and he has already won the championship of the project, otherwise: (a) After each round of competition, the height of the crossbar shall not be less than 2 cm. (b) The height of the crossbar shall not be increased.
In the all-around competition of rules 12, 1(a), (b) and (c), the height of each round of crossbar is 3cm. Once the competition begins, athletes are not allowed to use the run-up or take-off area for practice.
Under any of the following circumstances, the trial jump is judged to have failed: (1) After the trial jump, the crossbar failed to stay on the crossbar support because of the athlete's trial jump; Or (b) before crossing the crossbar, any part of the athlete's body touches the ground or landing zone outside the hurdle. If the athlete touches the area with one foot in the trial jump and the referee thinks that he has not benefited from it, it should not be judged as a failure in the trial jump.
Athletes can try to jump at any height in the crossbar elevation scheme announced by the referee in advance, or they can decide whether to try to jump at any height in the future according to their own wishes. However, at any height, as long as the athletes fail to try to jump three times in a row, they will be disqualified from continuing the competition.
Except for the final ranking trial jump caused by the equal score of 1 bit. After the first or second attempt at a certain height fails, athletes are allowed to request jump exemption at the second or third attempt and continue to try at subsequent heights.
Athletes are not allowed to resume the trial jump at a certain height after requesting it, unless the 1 position is equal. After raising the crossbar every time, athletes should measure the height of the crossbar before trying to jump.
When the cross bar is placed at the record height, the relevant referee must carry out the audit measurement. If the crossbar is touched again after the last height measurement, the referee must measure the crossbar height again before the subsequent height test jump.
Even if other athletes fail, an athlete is still qualified to continue trying to jump until he gives up the right to continue the competition. When the athletes win the competition, the referee or the relevant referee shall solicit the opinions of the athletes, and the athletes shall decide the lifting height of the crossbar.
Every athlete should take his best trial jump result, including the trial jump result caused by the equal score of 1 in the final ranking competition, as his final winning result. During the competition, it is not allowed to move the platform or hurdle unless the relevant referee thinks that the take-off area or landing area has become unsuitable for the competition.
If it is necessary to move the top or column of the jumper, it should be done after the trial jump.