Information AboutPole Vault |
| CATEGORIES ABOUT POLE VAULT | |
| events in athletics | |
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HISTORY As a practical means of passing over such natural obstacles as canals and brooks, pole vaulting has been used in many parts of the world, such as in the marshy provinces of Friesland in The Netherlands along the North Sea , and the great level of the fens of Cambridgeshire , Huntingdonshire , Lincolnshire and Norfolk . The artificial draining of these marshes brought into existence a network of open drains or canals intersecting each other at right angles. In order to cross these without getting wet, and at the same time avoid tedious roundabout journeys over the bridges, a stack of jumping poles was kept at every house, which were commonly used for vaulting over the canals. In Friesland, where it is called Fierljeppen , it has continued to be a Folkloristic activity with annual competitions. Broad-jumping with the pole, though the original form of the sport, has never found its way into organized athletics, the high jump being the only form recognized. Modern competitions probably began around 1850 in Germany , when it was added to the gymnastic exercises of the Turner by Johann C. F. GutsMuths and Frederich L. Jahn . The modern pole vaulting technique was developed in the United States at the end of the nineteenth century. In Great Britain it was first commonly practised at the Caledonian Games . Initially, vaulting poles were made from stiff materials such as Bamboo or Aluminium , until the introduction of flexible vaulting poles made from Composites such as Fiberglass or Carbon Fiber . Physical attributes such as speed and agility are essential to pole vaulting effectively, but technical skill is an equally if not more important element. The object is to clear a bar or stick supported upon two uprights without knocking it down. While women's pole vault records were kept for many years, the event only started to gain popularity in the 1990s . MODERN VAULTING ''See also: World Record Progression Pole Vault Men , World Record Progression Pole Vault Women '' Today, athletes compete in the pole vault as one of the four Jumping events in Track And Field . It is also the eighth event in the Decathlon . During a competition, a bar progression is chosen by an event official. The progression goes from an initial height, called the opening height, presumably a height that all competitors are capable of clearing, and progresses higher by even increments. Typical increments are six inches in high school competitions, or 10-15 cm in collegiate and elite competitions. Competitors can enter the competition at any point in the progression. After entering the competition, the vaulter has three attempts to successfully clear the bar. After a successful clearance, the vaulter may jump at the next height in the progression, or choose to pass to a higher height. A vaulter is out of the competition when he/she misses a bar three consecutive times. A "no height", often denoted NH, refers to the failure of a vaulter to clear any bar during the competition. Having cleared the highest height, the last competitor remaining in the competition wins. Vaulters are placed first, second and so forth according to their highest cleared height and the number of attempts that were taken to clear that height. A tie can occur when two or more vaulters have the same number of misses at every height. Ties can be broken in what is known as a jump-off. A jump-off is a Sudden Death competition in which both vaulters attempt the same height, starting with the last attempted height. If both vaulters miss, the bar goes down by a small increment, and if both clear, the bar goes up by a small increment. A jump-off ends when one vaulter clears and the other misses. In Britain at one time the vaulter was allowed to climb the pole when it is at the perpendicular. Tom Ray , of Ulverston in Cumbria , who was champion of the world in 1887, was able to gain several feet in this manner. The equipment and rules for pole vaulting are similar to the High Jump . Unlike high jump though, the athlete in the vault has the ability to select the horizontal position of the bar before each jump and can place it anywhere from 40 cm to 80 cm beyond the back of the box. If the pole used by the athlete dislodges the bar from the uprights a foul attempt is ruled, even if the athlete themselves have cleared the height. However if the pole breaks during the execution of a vault, the competitor will be allowed another attempt, assuming they can still walk. There are many Physical , Psychological , and Environmental factors that can contribute to the success or failure of an attempt, including Speed , Technique , height, jumping ability, Strength , Confidence and mental preparedness, Wind speed and direction, Temperature , etc. The vaulter must choose a pole with length and stiffness that is matched to his ability, which may vary according to the above conditions. The mere act of choosing a pole can have a significant effect on a vaulter's jump, as a pole that is too elastic will cause the vaulter to penetrate too far into the pit, sometimes flying underneath the bar before achieving maximum height, and a pole that is too stiff can cause the vaulter to be rejected backwards, in extreme cases landing back on the runway or in the metal box into which the pole was planted. Poles are manufactured with ratings corresponding to the vaulter's recommended maximum weight. Some organizations forbid vaulters to use poles rated below their weight as a safety precaution, though such rules are rarely enforced. The recommended weight corresponds to a flex rating that is determined by the manufacturer by placing a standardized amount of stress on the pole and measuring how much the center of the pole is displaced. Therefore, two poles rated at the same weight are not necessarily the same stiffness. Because pole stiffness and length are important factors to a vaulter's performance, it is not uncommon for an elite vaulter to carry as many as 10 poles to a competition. The effective properties of a pole can be changed by gripping the pole higher or lower in relation to the top of the pole. The left and right handgrips are typically about shoulder width apart. Poles are manufactured for people of all skill levels, with sizes as small as 10 feet, 90 lb, to as large as 17+ feet, 230 pounds. Although there are many techniques used by vaulters at various skill levels to clear the bar, the generally accepted technical model can be broken down into several phases, listed and described below:
The pole vault is exciting to watch because of the extreme heights reached by competitors, and the inherent danger of the activity, two elements which combine to make it popular with spectators. The current men's world record is 6.14 metres (20 ft, 1¾ in), held by Sergey Bubka of Ukraine , set on 30 June 1994 in Sestriere . The current women's world record is 5.01 metres (16 ft, 5¼ in), held by Yelena Isinbayeva of Russia , set on 12 August 2005 in Helsinki . SEQUENCE High schooler Chip Heuser clearing a personal best of 5.20 meters at the Texas Relays , April, 2003: COMMON POLE VAULT TERMINOLOGY The following are terms commonly used in pole vault:
REFERENCES SEE ALSO
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