Pole vault

 ( Events In Track And Field ) 

Originally, poles were made of ash and from hickory wood. Bamboo poles were introduced in 1904, and both aluminum and steel poles appeared after 1945. Fiberglass vaulting poles received much notice in the American press in the early 1960s. John Uelses set a new world record with one on 2 February 1962."Track Goals All Too Low" (Associated Press story). The Sunday Press (Binghamton, NY), 4 February 1962, 5D. In February 1963 the standing world record was surpassed by UCLA's C. K. Yang and two other vaulters within a nine-day period using fiberglass poles."How fair is a flip with the flexible pole?" LIFE, 22 February 1963, 36.. Poles made of glass fiber were not new at the time, however. Herb Jenks had been manufacturing them since 1948—the year Bob Mathias first used one—and Mathias's pole was fiberglass when he won the decathlon at the 1952 Olympics.Maule, Tex. "He Could Do It on Bamboo." Sports Illustrated, 26 February 1963, 12.

James Monroe Lindler of the Columbia Products Company (Columbia, SC) filed a patent application on 10 March 1967—granted patent status on 27 January 1970—for the manufacture of, "a vaulting pole of hollow construction with an integral helical winding," and a method of manufacturing the same (see: US Patent US3491999A). The process starts with a metal tube, referred to in the industry as a mandrel, around which is wound a tape made of glass fibers impregnated with a resin. This is baked in an oven and after cooling the mandrel is removed to leave a hollow glass fiber tube. This process was based on a similar method used for manufacturing glass fiber golf clubs patented by the Woolley Manufacturing Company of Escondido, California in 1954 (see: US Patent US2822175A).

In September 2005, Jeffrey P. Watry, Ralph W. Paquin, and Kenneth A. Hursey of Gill Athletic, Champaign, Illinois, filed application to patent a new method of winding the glass fibers around the pole in layers, each wound in a different direction or orientation to provide specific properties to various parts of the pole. This was called Carbon Weave, and their patent was granted on 21 October 2008 (see: US Patent US3491999A). David J. Dodge and William C. Doble of the Alliance Design and Development Group of New York City, New York, were granted a patent in 2006 for the manufacture of, "sports equipment having a tubular structural member" which led to the introduction of carbon fiber vaulting poles in 2007 (see: US Patent US7140398B2).

In 2000, IAAF rule 260.18a (formerly 260.6a) was amended, so that "world records" (as opposed to "indoor world records") can be set in a facility "with or without roof". This rule was not applied retroactively. With many indoor facilities not conforming to outdoor track specifications for size and flatness, the pole vault was the only world record set indoors until 2022.

Once the vaulter enters the competition, they can choose to pass heights. If a vaulter achieves a miss on their first attempt at a height, they can pass to the next height, but they will only have two attempts at that height, as they will be out once they achieve three consecutive misses. Similarly, after earning two misses at a height, they could pass to the next height, where they would have only one attempt.

The competitor who clears the highest height is the winner. If two or more vaulters have finished with the same height, the tie is broken by the number of misses at the final height. If the tied vaulters have the same number of misses at the last height cleared, the tie is broken by the total number of misses in the competition.

If there is still a tie for first place, a jump-off occurs to break the tie. Marks achieved in this type of jump-off are considered valid and count for any purpose that a mark achieved in a normal competition would.

If a tie in the other places still exists, a jump-off is not normally conducted, unless the competition is a qualifying meet, and the tie exists in the final qualifying spot. In this case, an administrative jump-off is conducted to break the tie, but the marks are not considered valid for any other purpose than breaking the tie.

A jump-off is a sudden death competition in which the tied 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. Each vaulter gets one attempt at each height until one clears and one misses.

The equipment and rules for pole vaulting are similar to the high jump. Unlike high jump, however, the athlete in the vault has the ability to select the horizontal position of the bar, known as the standards, before each jump and can place it a distance beyond the back of the box, the metal pit that the pole is placed into immediately before takeoff. The range of distance the vaulter may place the standards varies depending on the level of competition.

If the pole used by the athlete dislodges the bar from the uprights, a foul attempt is ruled, even if the athlete has cleared the height. An athlete does not benefit from quickly leaving the landing pad before the bar has fallen. The exception to this rule is if the vaulter is vaulting outdoors and has made a clear effort to throw the pole back, but the wind has blown the pole into the bar; this counts as a clearance. This call is made at the discretion of the pole vault official. If the pole breaks during the execution of a vault, it is considered an equipment failure and is ruled a non-jump, neither a make nor a miss. Other types of equipment failure include the standards slipping down or the wind dislodging the bar when no contact was made by the vaulter.

Each athlete has a set amount of time in which to make an attempt. The time starts when the official deems the standards to be set, ready for the athlete to attempt their jump. When every athlete is still in the competition, each vaulter has one minute to complete their jump. When 3 athletes are remaining the time moves to 2 minutes. 2 athletes remaining gets 3 minutes. After the final jumper remains, he or she gets 5 minutes on the runway. The amount of time varies by level of competition and the number of vaulters remaining. If the vaulter fails to begin an attempt within this time, the vaulter is charged with a time foul and the attempt is a miss.

Poles are manufactured with ratings corresponding to the vaulter's maximum weight. As a safety precaution, some organizations forbid use of poles rated below the vaulter's weight. The recommended weight roughly corresponds to a flex rating that is determined by the manufacturer by applying a standardized amount of stress (most commonly 23 kgf (230 N or 50 lb)) 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.

Pole stiffness and length are important factors to a vaulter's performance. Therefore, it is not uncommon for an elite vaulter to carry as many as ten poles to a competition. The effective length 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 a bit more than shoulder width apart. Poles are manufactured for people of all skill levels and body sizes, with lengths between and and a wide range of weight ratings. Each manufacturer determines the weight rating for the pole and the location of the maximum handhold band.

As in the high jump, the landing area was originally a heap of sawdust or sand where athletes landed on their feet. As technology enabled higher vaults, mats evolved into bags of large chunks of foam. Today's mats are foam usually thick. They are usually built up with two cross-laid square section logs with gaps between them, topped by a solid layer of foam of the same thickness. This lattice construction is wrapped in a close-fitting cover topped with nylon mesh, which allows some air to escape, thus combining both foam and a measure of air cushioning. The final layer is a large mat of mesh-covered foam which is clipped around the edges of the complete pit and prevents the athlete from falling between the individual bags. The size of mats used has been increasing in area to minimize the risk of injury. Proper landing technique is on the back or shoulders. Landing on the feet should be avoided, to eliminate the risk of injury to the lower extremities, particularly ankle sprains.

Rule changes over the years have resulted in larger landing areas and additional padding of all hard and unyielding surfaces.

The pole vault crossbar has evolved from a triangular aluminum bar to a round fiberglass bar with rubber ends. This is balanced on standards and can be knocked off when it is hit by a pole vaulter or the pole. Rule changes have led to shorter pegs and crossbar ends that are semi-circular.

Bar

The cross bar that is suspended above the ground by the standards.

Box

A trapezoidal indentation in the ground with a metal or fiberglass covering at the end of the runway in which vaulters "plant" their pole. The back wall of the box is nearly vertical and is approximately in depth. The bottom of the box gradually slopes upward approximately until it is level with the runway. The covering in the box ensures the pole will slide to the back of the box without catching on anything. The covering's lip overlaps onto the runway and ensures a smooth transition from all-weather surface so a pole being planted does not catch on the box.

Drive knee

During the plant phase, the knee is driven forward at the time of "takeoff" to help propel the vaulter upward.

Grip

The location of the vaulter's top hand on the pole. As the vaulter improves, their grip may move up the pole incrementally. The other hand is typically placed shoulder-width down from the top hand. Hands are not allowed to grip the very top of the pole (their hand perpendicular to the pole) for safety reasons.

Jump foot

The foot that the vaulter uses to leave the ground as they begin their vault. It is also referred to as the take-off foot.

Pit

The mats used for landing in pole vault.

Plant position

The position a vaulter is in the moment the pole reaches the back of the box and the vaulter begins their vault. Their arms are fully extended and their drive knee begins to come up as they jump.

Pole

The fiberglass equipment used to propel the vaulter up and over the bar. One side is stiffer than the other to facilitate the bending of the pole after the plant. A vaulter may rest the pole on their arm to determine which side is the stiff side.

Standards

The equipment that holds the bar at a particular height above the ground. Standards may be adjusted to raise and lower the bar and also to adjust the horizontal position of the bar.

Steps

Since the box is in a fixed position, vaulters must adjust their approach to ensure they are in the correct position when attempting to vault.

Swing leg or trail leg

The swing leg is also the jump foot. After a vaulter has left the ground, the leg that was last touching the ground stays extended and swings forward to help propel the vaulter upwards.

Volzing

A method of holding or pushing the bar back onto the pegs while jumping over a height. This takes considerable skill, although it is now against the rules and counted as a miss. The technique is named after U.S. Olympian Dave Volz, who made an art form of the practice and surprised many by making the U.S. Olympic team in 1992.

• . Pole Vault – women – senior – outdoor. World Athletics. Retrieved on 9 July 2021.

This is a list of the first-time milestones for women.

• Known as the World Indoor Games

• IAAF list of pole-vault records in XML
• All-time Masters men's Pole Vault list
• All-time Masters women's Pole Vault list