Discus - Biblioteka.sk

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Discus
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Athletics
Discus throw
German 2012 Olympic champion Robert Harting
World records
Men Mykolas Alekna (LTU) 74.35 m (243 ft 11 in) (2024)
Women Gabriele Reinsch (GDR) 76.80 m (251 ft 11 in) (1988)
Olympic records
Men Virgilijus Alekna (LTU) 69.89 m (229 ft 3 in) (2004)
Women Martina Hellmann (GDR) 72.30 m (237 ft 2 in) (1988)
World Championship records
Men Daniel Ståhl (SWE) 71.46 m (234 ft 5 in) (2023)
Women Martina Hellmann  (GDR) 71.62 m (234 ft 11 in) (1987)

The discus throw (pronunciation), also known as disc throw, is a track and field sport in which the participant athlete throws an oblate spheroid weight — called a discus — in an attempt to mark a farther distance than other competitors. It is an ancient sport, as demonstrated by the fifth-century-BC Myron statue Discobolus. Although not part of the current pentathlon, it was one of the events of the ancient Greek pentathlon, which can be dated back to at least 708 BC,[1] and it is part of the modern decathlon.

History

Modern copy of the Diskophoros, attributed to Alkamenes

The sport of throwing the discus traces back to it being an event in the original Olympic Games of Ancient Greece.[2] The discus as a sport was resurrected in Magdeburg, Germany, by gymnastics teacher Christian Georg Kohlrausch and his students in the 1870s.[3] Organized men's competition was resumed in the late 19th century, and has been a part of the modern Summer Olympic Games since the first modern competition, the 1896 Summer Olympics. Images of discus throwers figured prominently in advertising for early modern Games, such as fundraising stamps for the 1896 Games, and the main posters for the 1920 and 1948 Summer Olympics. Today the sport of discus is a routine part of modern track-and-field meets at all levels, and retains a particularly iconic place in the Olympic Games.

The main poster for the 1920 Summer Olympics

The first modern athlete to throw the discus while rotating the whole body was František Janda-Suk from Bohemia (the present Czech Republic).[4] Janda-Suk invented this technique when studying the position of the famous statue of Discobolus. After only one year of developing the technique, he earned a silver medal in the 1900 Olympics.

Women's competition began in the first decades of the 20th century. Following competition at national and regional levels, it was added to the Olympic program for the 1928 games.

Regulations

The event consists of throwing a heavy disc, with the weight or size depending on the competitor. Men and women throw different sized discs, with varying sizes and weights depending on age. The weight of the discus is either governed by World Athletics for international or USA Track & Field for the United States.

In the United States, Henry Canine advocated for a lighter-weight discus in high school competition. His suggestion was adopted by the National High School Athletic Association in 1938.[5]

US Weights[6]
Age Men Women
High School 1.6 kg 1 kg
Collegiate 2 kg 1 kg
Professional 2 kg 1 kg
Master's (35-59) 1.5 kg 1 kg
Master's (60-74) 1 kg 1 kg
Master's (75+) 1 kg 0.75 kg
International Weights[7]
Age Men Women
≤17 1.5 kg 1 kg
18-19 1.75 kg 1 kg
20-49 2 kg 1 kg
50-59 1.5 kg 1 kg
60-74 1 kg 1 kg
75+ 1 kg 0.75 kg
Discus (2 kg), World Athletics certified for competitions
Side view
Longitudinal section (schematic)

The typical discus has sides made of plastic, wood, fiberglass, carbon fiber or metal with a metal rim and a metal core to attain the weight. The rim must be smooth, with no roughness or finger holds. 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. However, a higher rim weight, if thrown correctly, can lead to a longer throw. In some competitions, a solid rubber discus is used (see in the United States).

To make a throw, the competitor starts in a circle of 2.5 m (8 ft 2+14 in) diameter, which is recessed in a concrete pad by 20 millimetres (0.79 in). The thrower typically takes an initial stance facing away from the direction of the throw. They then spin anticlockwise (for right-handers) 1+12 times while staying within the circle to build momentum before releasing the discus. The discus must land within a 34.92º circular sector that is centered on the throwing circle.[8] The rules of competition for discus are virtually identical to those of shot put, except that the circle is larger, a stop board is not used and there are no form rules concerning how the discus is to be thrown.

The basic motion is a fore-handed sidearm movement. The discus is spun off the index finger or the middle finger of the throwing hand. In flight the disc spins clockwise when viewed from above for a right-handed thrower, and anticlockwise for a left-handed thrower. 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 behavior 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 much experience to perfect; thus most top throwers are 30 years old or more.

The discus throw is sometimes contested indoors, but it is not included at the World Athletics Indoor Championships. World Athletics used to keep "world indoor best" discus records, but since 2023 they now combine both indoor and outdoor marks.[9][10]

Discus-thrower, tondo of a kylix by the Kleomelos Painter, Louvre Museum
Modern copy of Myron's Discobolus in University of Copenhagen Botanical Garden, Denmark

Phases

The discus technique can be broken down into phases. The purpose is to transfer from the back to the front of the throwing circle while turning through one and a half circles. The speed of delivery is high, and speed is built up during the throw (slow to fast). Correct technique involves the buildup of torque so that maximum force can be applied to the discus on delivery.[11]

Rutger Smith in phases of the discus throw

Initially, the thrower takes up their position in the throwing circle, distributing their body weight evenly over both feet, which are roughly shoulder width apart. They crouch in order to adopt a more efficient posture to start from whilst also isometrically preloading their muscles; this will allow them to start faster and achieve a more powerful throw. They then begin the wind-up, which sets the tone for the entire throw; the rhythm of the wind-up and throw is very important.

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.[12]

For a right handed thrower, the next stage is to move the weight over the left foot. From this position the right foot is raised, and the athlete 'runs' across the circle. There are various techniques for this stage where the leg swings out to a small or great extent, some athletes turn on their left heel (e.g. Ilke Wylluda[13]) but turning on the ball of the foot is far more common.

The aim is to land in the 'power position', the right foot should be in the center and the heel should not touch the ground at any point. The left foot should land very quickly after the right. Weight should be mostly over the back foot with as much torque as possible in the body—so the right arm is high and far back. This is very hard to achieve.[14]

The critical stage is the delivery of the discus, from this 'power position' the hips drive through hard, and will be facing the direction of the throw on delivery. Athletes employ various techniques to control the end-point and recover from the throw, such as fixing feet (to pretty much stop dead[13]), or an active reverse spinning onto the left foot (e.g. Virgilijus Alekna[15]).

Sports scientist Richard Ganslen researched the Aerodynamics of the Discus, reporting the discus will stall at an angle of 29°.[16]

Culture

The discus throw has been the subject of a number of well-known ancient Greek statues and Roman copies such as the Discobolus and Discophoros. The discus throw also appears repeatedly in ancient Greek mythology, featured as a means of manslaughter in the cases of Hyacinth, Crocus, Phocus, and Acrisius, and as a named event in the funeral games of Patroclus.

Discus throwers have been selected as a main motif in numerous collectors' coins. One of the recent samples is the €10 Greek Discus commemorative coin, minted in 2003 to commemorate the 2004 Summer Olympics. On the obverse of the coin a modern athlete is seen in the foreground in a half-turned position, while in the background an ancient discus thrower has been captured in a lively bending motion, with the discus high above his head, creating a vivid representation of the sport.

All-time top 25

Men

Ath.# Perf.# Mark Athlete Nation Date Place Ref.
1 1 74.35 m (243 ft 11 in) Mykolas Alekna  Lithuania 14 April 2024 Ramona [19]
2 2 74.08 m (243 ft 0 in) Jürgen Schult  East Germany 6 June 1986 Neubrandenburg
3 3 73.88 m (242 ft 4 in) Virgilijus Alekna  Lithuania 3 August 2000 Kaunas
4 4 73.38 m (240 ft 8 in) Gerd Kanter  Estonia 4 September 2006 Helsingborg
5 72.02 m (236 ft 3 in) Kanter #2 3 May 2007 Salinas
6 71.88 m (235 ft 9 in) Kanter #3 8 May 2008 Salinas
5 7 71.86 m (235 ft 9 in) Yuriy Dumchev  Soviet Union 29 May 1983 Moscow
Daniel Ståhl  Sweden 29 June 2019 Bottnaryd [20]
Kristjan Čeh  Slovenia 16 June 2023 Jõhvi [21]
8 10 71.84 m (235 ft 8 in) Piotr Małachowski  Poland 8 June 2013 Hengelo
9 11 71.70 m (235 ft 2 in) Róbert Fazekas  Hungary 14 July 2002 Szombathely
12 71.64 m (235 ft 0 in) Kanter #4 25 June 2009 Kohila
13 71.56 m (234 ft 9 in) V. Alekna #2 25 July 2007 Kaunas
10 14 71.50 m (234 ft 6 in) Lars Riedel  Germany 3 May 1997 Wiesbaden
11 15 71.48 m (234 ft 6 in) Alex Rose  Samoa 11 May 2024 Allendale [22]
16 71.47 m (234 ft 5 in) Ståhl #2 21 June 2022 Uppsala [23]
17 71.46 m (234 ft 5 in) Ståhl #3 21 August 2023 Budapest [24]
18 71.45 m (234 ft 4 in) Kanter #5 29 April 2010 Chula Vista
Ståhl #4 16 June 2023 Jõhvi [21]
20 71.40 m (234 ft 3 in) Ståhl #5 10 July 2021 Bottnaryd
21 71.39 m (234 ft 2 in) M. Alekna #2 6 April 2024 Berkeley [25]
22 71.37 m (234 ft 1 in) Ståhl #6 10 August 2020 Sollentuna
12 23 71.32 m (233 ft 11 in) Ben Plucknett  United States 4 June 1983 Eugene
24 71.29 m (233 ft 10 in) Ståhl #7 29 June 2017 Sollentuna
25 71.27 m (233 ft 9 in) Čeh #2 21 May 2022 Birmingham [26]
13 71.26 m (233 ft 9 in) John Powell  United States 9 June 1984 San Jose
Rickard Bruch  Sweden 15 November 1984 Malmö
Imrich Bugár  Czechoslovakia 25 May 1985 San Jose
16 71.18 m (233 ft 6 in) Art Burns  United States 19 July 1983 San Jose
17 71.16 m (233 ft 5 in) Wolfgang Schmidt  East Germany 9 August 1978 Berlin
18 71.14 m (233 ft 4 in) Anthony Washington  United States 22 May 1996 Salinas
19 71.06 m (233 ft 1 in) Luis Delís  Cuba 21 May 1983 Havana
20 70.98 m (232 ft 10 in) Mac Wilkins  United States 9 July 1980 Helsinki
21 70.82 m (232 ft 4 in) Aleksander Tammert  Estonia 15 April 2006 Denton
22 70.78 m (232 ft 2 in) Fedrick Dacres  Jamaica 16 June 2019 Rabat [27]
23 70.68 m (231 ft 10 in) Lukas Weißhaidinger  Austria 19 May 2023 Schwechat [28]
24 70.66 m (231 ft 9 in) Robert Harting  Germany 22 May 2012 Turnov
25 70.54 m (231 ft 5 in) Dmitriy Shevchenko  Russia 7 May 2002 Krasnodar

Notable series

  • Mykolas Alekna had throws of 72.71, 72.89 and 74.35, initially measured as 74.41, at the Oklahoma Throws Series in Ramona on 14 April 2024, becoming the first man to produce three throws above 72 meters (and six throws above 70 meters) in a single competition.[29]
  • Kristjan Čeh had throws of 71.86, 71.70 and 71.19 in Jõhvi on 16 June 2023 becoming the first man to have three throws above 71 metres in a single competition.[21]
  • At the 2019 Diamond League Meeting in Doha, Qatar, Daniel Ståhl became the first man to produce six throws beyond 69.50 in a single competition.[30]

Annulled marks

  • Ben Plucknett also threw a world record of 72.34 in Stockholm on 7 July 1981. This performance was annulled due to doping offences.
  • Kamy Keshmiri threw 70.84 in Salinas on 27 May 1992. This performance was annulled due to doping offences.

Non-legal marks

  • Rickard Bruch also threw 72.18 at an exhibition meeting in Piteå on 23 July 1974.
  • John Powell also threw 72.08 in Klagshamn on 11 September 1987, but the throw was made onto a sloping/downhill sector.

Women

Ath.# Perf.# Mark Athlete Nation Date Place Ref.
1 1 76.80 m (251 ft 11 in) Gabriele Reinsch  East Germany 9 July 1988 Neubrandenburg
2 2 74.56 m (244 ft 7 in) Zdeňka Šilhavá  Czechoslovakia 26 August 1984 Nitra Zdroj:https://en.wikipedia.org?pojem=Discus
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