Take advantage of strength science and technology Shoot with great precision

Take advantage of strength science and technology Shoot with great precision
Staff reporter Tan Jia The men's team of China's archery brings unexpected happiness to everybody on August 11. At noon on the 11th, the Beijing Olympic Games archery man's group event finishes the round of 16, China behaves originally, defeat England to advance to the last eight by 214210. In the quarter finals that carry on subsequently, Chinese 3 team member of men's team give play to more and more kind, they defeat Russia and intrude upon the top four by 217209 once again. Though with the difference of 3 rings in the semifinals that are carried on at 16 o'clock on the same day, defeating by strong team Korea has no chance with the final, but the achievements that the men's team of China's archery intrudes upon the top four for the first time still let people feel joyful. The electricity of skin monitors and finds accurately training " The target is clicked " "The previous minute of Taiwan, the work of ten years under the platform. " The archery is the event of a high technical requirement, this " static behavior " Event video after comparable to getting more difficult very to find out by that clue in analysis. "Athletes pull the bow and shoot arrows and is exerted oneself within the muscle by an arm, from very ugly famous hall of appearance. But the training for muscle strength, improvement of technological movement, can all measure and find accurately training ' the target is clicked ' through the electricity of skin. " Experimental center Professor Xiong KaiYu of teaching of Beijing Inst. of Physical Education says, utilizes electricity of skin, three-dimensional dynamometry system and three-dimensional camera system, test marksmanship movements synchronously, can understand exerting oneself situation, people's rifle consistency and regulation which rock the situation, movement technology of shutting weight of the muscles in the movement course of shooting, can also be in order to optimize the movement technology of the shooting, improve movement consistency and regulation to offer reference. The bear opened space and explained, the electric signal of skin of surface is the electric signal that muscles followed while shrinking. This signal produced at the time of muscle excitement, after through guiding and enlarging, write down on the record device of the electric appearance of skin, can analyze the biomethanics characteristic of muscles from it, know directly athlete's muscles use the change of strength, see it is extensor that exert oneself, crook skin, exert oneself; Also may tell correct and wrong feeling hard, see whether should move with the muscles of strength more accurately, thus strengthen the correct movement skill repeatedly. The last spreading and showing the act that movements are known as the crucial touch in the archery, has explained and put the key position put in archery movements. The movements spread when putting correctly are: Pushing and bending and pulling the bow two pieces of opposite strength produced want the equilibrium, coordinated, regard cancelling the string and clicking as centre, separate evenly while being about, hold the intersection of bow and arm with direction that arrow penetrate along the intersection of shooting and movement face, collude the intersection of string and hand along rearward movement the shooting, form one natural movement of coordination. Professor Xiong KaiYu says, the early archer needs arm muscles to exert oneself while finishing letting acting go and putting. We monitor through the electricity of skin,etc. to find, athlete's arm muscles will cause a movement of manipulating the strings while exerting oneself after technological analysis, the orbit of making the arrow leaving bowstring penetrate presents certain radian, has deviated from the position aimed at originally. Now, utilize the slippery string of natural reacting force of the bowstring to spread and put and already become the mainstream, athletes pull the bow the arm crooks the skin to relax, the extensor does not use strength either. The way and pull the bow to take off string it exerts oneself to be totally identical, to pull the bow continuation to spend force, can reduce the energy consumption bent to the maximum extent, make the bowstring put out the arrow along more ideal orbit. Because power of it come from, pull the bow the last back muscle group of the arm mainly, when the bowstring leaves the finger, the arm reflectivity of pulling the bow is returned backward, make it become one naturally, unfold generous and coordinated acting. Hold and bend flashing as holding the excellent behavior that strong China shoots an arrow in the men's team. After being pleasantly surprised, people feel some regrets for the Chinese woman's archery team unavoidably too. 24 arrows, 215 rings and 224 rings. The difference of 9 rings, Chinese woman's archery team can break the unbeaten mythology in woman's archery group event of South Korean women's team finally. In the archery group final of Beijing 2008 Olympic Games woman that are held at 18 on August 10, the South Korean women's team gets the silver medal that China loses the game regretfully. This is that a Chinese women's team has no resolution towards gold 3 times in Olympic final. With the intersection of China and a poised for battle one being the intersection of South Korean and the intersection of women's team and 3 fierce to become virtuous, YuJi and Zhu XianZhen Yin Piao capability. Athens Olympics extra quality the intersection of champion and Piao become virtuous and famous for being steadily and accurately, is considered as the archery talent. The Athens Olympics is that she hits X 10 last " The sniper's shot " Have broken the gold medal dreams of China. Yin YuJi ranks the first, hits the world records of 20 arrows and 119 rings this year in the world now. What the archery match is paid attention to is one " Quiet" Word. Famous popular science writer Zhao Zhi really says, the diameter of the arrow target is 122 centimetres, called " ox's eyes " Bull's-eye diameter only 12.2 centimetre. Athletes should hit the X 10 from over 70 meters, stand in a goal of pitch hitting an apple in the goal opposite in other words, if you want to shoot with great precision and arrow have timid to take place, should keep the stationarity of the body first, flash and move slightly and lose the front sight, wrong with thousand li. Hold and bend acting as to hold strongly. About 50 pounds of average strength that the man player draws in the archery match, women player is about 35 pounds. One regular world championship, take, put up bending shooting an arrow 288 times in 4 day one pair of offices. The man player adds up to about 8 tons hard, women player exceeds 5 tons. With pulling open the strong bow, spreading and comparing shooting arrows, the archery player is keeping drawing the bow but not discharge the narrow, it is enormouser to jump the physical power and energy substantially as consuming at the time of the state that. If end body is done, frank arm such as branch, form " cross " to horizontal supporting strength and vertical supporting strength that the body stands correctly of the bow and arrow system Exert oneself structure. Such high-quality balanced really not work of one day of quiet strength. Arrow which seem to be relaxed and graceful, it is the result that athletes train hard. The expert points out, totally physical stamina from people of all strength of shooting an arrow in the shooting sports. The reflex bow which athletes used on the Olympic Games, was connected with tenacious bowstring by the bow handle of rigidity, elastic upper and lower bow slice. Until athlete hold the intersection of bow and arm and pull the bow function of arm, tension at the bowstring make it produce and draw deformation not to bend a slice of outside, the inside produces and compresses deformation, thus bring the bending which bends scene, the strength shrinking muscles changes the elasticity potential energy bent to store, then released the flight of promoting the arrow suddenly. Actually bend a energy converter, turn the person's physiological energy into the kinetic energy of the arrow. In the course of bending scene crookedly, moments that every section bears are different, it is the farther before bending the handle, the smaller the stress is. This is the reason why the reflex bow design the bow tip into reflexing the shape.

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