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Official and competition discus - wood, steel metal, ABS plastic discus... shapeupshop.com | throwing - shoulder surgery articles related to throwing shoulderdoc.co.uk | Maui Discus Challenge pausatf.org |
"Discus" redirects here. For other uses, see Discus (disambiguation).  The discus throw is an event in track and field competition, in which an athlete throws a heavy disc — called a discus — in an attempt to mark a farther distance than his or her competitors. It is an ancient sport, as evidenced by the 5th century BC Myron statue, Discobolus. Although not part of the modern pentathlon, it was one of the events of the ancient pentathlon, which can be dated at least back to 708 BC.[1] The discus throw is a routine part of most modern track and field meets at all levels and is a sport which is particularly iconic of the Olympic Games. The men's competition has been a part of the modern Summer Olympic Games since the first Olympiad in 1896. Images of discus throwers figured prominently in advertising for early modern Games, such as/object/gallery_uk.asp?ObjId=64 Discus Thrower stamps sold to help build facilities at the 1896 games]</ref> and the main posters for the 1920 and 1948 Summer Olympics.[2] The women's competition was added to the Olympic program in the 1928 games, although they had been competing at some national and regional levels previously.
[edit] DescriptionThe discus, the object to be thrown, is a heavy lenticular disc with a weight of 2 kilograms (4 lb 7 oz) and diameter of 220 mm (8.66 inches) for the men's event, and a weight of 1 kg (2 lb 3 oz) and diameter of 181 mm (7.17 inches) for the women's event. In U.S. high school track and field, boys typically throw a discus weighing 1.616 kg (3 lb 9 oz) and the girls throw the 1 kg (2.2 lb) women's discus. The discus can be thrown starting at age 11 (midget division). Most children throw the 1 kg discus. The discus usually has sides made of rubber, plastic, wood, or metal with a metal rim and a metal core to attain the weight. A discus with more weight in the rim produces greater angular momentum for any given spin rate, and thus more stability, although it is more difficult to throw. A practice discus made of solid rubber is often used in High School; it is cheaper, more durable, and easier to learn to throw (due to its more equal distribution of weight, as opposed to the heavy rim weight of the metal rim/core discus). To make a throw, the competitor starts in a slightly recessed concrete-surfaced circle of 2.5 meters (8 feet 2½ inches) diameter. The thrower typically takes an initial stance facing away from the direction of the throw. He then spins around one and a half times through the circle to build momentum, then releases his throw. The discus must land within a 35-degree arc marked by lines on the landing zone, and the competitor must not exit the circle until the discus has landed, then must wait for the judge to give clearance to exit the ring from the rear half. The distance from the front edge of the circle to where the discus has landed is measured, and distances are rounded down to the nearest centimeter or half-inch. The competitor's best throw from the allocated number of throws, typically three to six, is recorded, and the competitor who legally throws the discus the farthest is declared the winner. Ties are broken by determining which thrower has the longer second-best throw. The basic motion is a forehanded sidearm movement. The discus is spun off the index finger or the middle finger of the throwing hand, spinning clockwise when viewed above for a right-handed thrower, and vice-versa. As well as achieving maximum momentum in the discus on throwing, the discus' distance is also determined by the trajectory the thrower imparts, as well as the aerodynamic behaviour of the discus. Generally, throws into a moderate headwind achieve the maximum distance. Also, a faster-spinning discus imparts greater gyroscopic stability. The technique of discus throwing is quite difficult to master and needs lots of experience to get right, thus most top throwers are thirty years old or more. [edit] Breaking Down the ThrowThere are six keys movements of the discus throw: wind up, move in rhythm, balance, right leg engine, orbit, and delivery. The wind up is one of the most important aspects of the throw because it sets the tone for the entire throw. The wind up is both mental and technical. It is mental because the wind up sets you up for the rest of the throw. The following are the technical aspects: flat right foot, on the ball of your left foot, keep your weight evenly distributed between your feet, and do not over do it (being overly active can result in the waste of energy). Although the wind up sets the tone for the entire throw, the rhythm of the throw is the most important aspect. It is necessary to move in rhythm through out the entire throw. The best throwers contain the same amount of time in each phase while completing a great throw. Focusing on rhythm can bring about the consistency to get in the right positions that many throwers lack. Executing a sound discus throw with solid technique requires perfect balance. This is due to the throw being a linear movement combined with a one and a half rotation and an implement at the end of one arm. Thus, a good discus thrower needs to maintain balance within the circle. [edit] Top Ten PerformersAccurate as of September 9, 2009[3]. [edit] Men
[edit] Women
[edit] World Record Progress[edit] Men
[edit] Women
[edit] See also
[edit] External links[edit] References
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