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Anonymous users2024-02-10The back jump is an inclined jump.
Lean inward, go to the left shoulder with the right shoulder first, and take off with your back to the bar.
The main feature of the back-to-back high jump run is the arc run, and the run-up line is generally"j"The advantages are:
1.The preparatory section of the run-up is a straight line or a line with a small curvature, so it is easy to accelerate and exert speed throughout the run.
2.The transition to an arc is gentle and natural, avoiding pauses or slowdowns.
3.The curvature of the arc changes from large to small, so that the body gradually increases the internal frequency.
4.The last step is about 20 degrees to 30 degrees angle with the crossbar to ensure that the human body has a suitable vertical displacement distance relative to the crossbar after taking off.
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Anonymous users2024-02-09Lean inward, go to the left shoulder with the right shoulder first, and take off with your back to the bar.
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Anonymous users2024-02-08Tilt jump (1) lowers the center of gravity of the body. The last 3 4 steps of the back cross style arc run, due to the centrifugal force of the body, causing the body to tilt towards the center of the arc, the shorter the radius and the faster the running speed, the greater the tilt in the human body, which naturally reduces the center of gravity of the body. Research data confirms:
Leaning inward by 30 degrees lowers the center of gravity by 13 cm. The lower center of gravity naturally lengthens the working distance during take-off. (2) Due to the requirements of the back over the bar, the body should be turned into a posture of facing the crossbar after the jump, and the arc running is used without affecting the running speed, and the body has become a side-to-side crossbar when the jump, and the last step is about 20 degrees to 30 degrees angle with the crossbar, so as to ensure that the human body has a suitable vertical displacement distance relative to the crossbar after taking off.
This prepares the body for take-off and allows the body to rotate around the longitudinal axis during take-off. (3) The arc running has a body from inversion to vertical movement when jumping, and the curvature of the arc changes from small to large, so that the body gradually increases inversion, and the relevant data show that the normal acceleration generated by it can increase the pressure of the support point and increase the take-off effect; The resulting tangential acceleration (i.e., centrifugal acceleration) helps in the movement in the direction of the crossbar.
This is the main motivation for the body to move from vertical to horizontal after jumping. (4) Arc run: Because of the inward leaning, you can avoid falling to the crossbar prematurely during the jump.
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Anonymous users2024-02-07It's okay to say that you don't have a rod and a rack, you can let your classmates help use simple equipment, but if you don't have a high jump pad, you can't do it, otherwise you can change it to a leapfrog type, right?
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Anonymous users2024-02-06In fact, I don't know how many times you have encountered this situation, to put it bluntly, you must jump to your highest place when you jump, how high you can jump, how high you can jump, this is the jump, but the pole is over the pole, when you jump to the highest, you have the right leg (the right side of the pole for example) to the left to drive the whole body to the back to the pole, that is, not completely back to the pole will touch the pole, just back at the same time, your head back is to do the action of the pole, then it is natural to cross the pole, It's not about leaning your body to the bar with your side, it's your person in a simple diagram and then turning a 90-degree final. And that's it. I think your mistake is that you haven't jumped up yet, and your body hasn't fully turned to the front and you don't have your back to the bar, just a little bit of your body is half on the bar and rushes to the bar, or you change the angle, if you jump high enough, even if you are sideways, you will cross the bar, and if you jump without the height of the bar, you will definitely hit the bar.
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Anonymous users2024-02-05Lean inward, go to the left shoulder with the right shoulder first, and take off with your back to the bar.
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Anonymous users2024-02-04The direction of the toe in the last step of the back-to-back jump is as important as the take-off, and the incorrect foot position will also have a great impact on the take-off. Usually beginners will naturally abduct their toes when jumping, forming a foot-lowering action of the outer figure-of-eight, this foot-putting technique, the answer is not to cause the lateral horizontal speed to be too large during the jump, resulting in the phenomenon of punching the bar; Second, it is easy to cause damage to the ankle joint.
Teaching methods: the previous step imitates the technical exercises, and the direction of the feet is required to be correct in the exercises; Do 1 to 3 steps along the straight line to take off and jump during the march, and pay attention to emphasizing the clear and loose feet along the straight line. At the starting point, put a small cushion along the direction of running, and ask to jump on the mat; In the short-course run-up elastic springboard jumping exercise, an elastic springboard is placed on the starting point, and the direction is consistent with the direction of the run-up, and the pedal is required to jump.
It is difficult to say who invented it, the origin of the high jump for reference: very early, it has been widely used in various periods in many countries of the world; The modern high jump began in the United Kingdom, and was listed as a competition event at the Scottish Games held in 1800. After the 60s of the 19th century, it began to be popularized in Europe and the Americas; In the first Olympic Games in 1896, the men's high jump was listed as an official event; In 1928, the 9th Olympic Games, the women's high jump was also included; Since then, the high jump technology has continued to develop, and new technologies such as "wave", "rolling", "prone and back-to-back" have appeared, so that the sports performance can be improved rapidly.
The essentials and tips are as follows:
1. When running in high jump, it is generally 6 to 8 steps, and the angle of the run-up is related to the posture of the pole, between 25° and 90°. When running, it is necessary to accelerate evenly while the center of gravity of the body moves smoothly forward, and it is necessary to run easily and naturally. The last 3 to 4 steps of the run-up should be run with a lower center of gravity. >>>More
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I remember a lot, but the most impressive thing is the grass, the grass on the plain, one year old and one withered, the wildfire is inexhaustible, and the spring breeze blows and grows.