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Sprint (running)
Sprinting is running over a short distance at the top-most speed of the body in a limited period of time. It is used in many sports that incorporate running, typically as a way of quickly reaching a target or goal, or avoiding or catching an opponent. Human physiology dictates that a runner's near-top speed cannot be maintained for more than 30–35 seconds due to the depletion of phosphocreatine stores in muscles, and perhaps secondarily to excessive metabolic acidosis as a result of anaerobic glycolysis. In athletics and track and field, sprints (or dashes) are races over short distances. They are among the oldest running competitions, being recorded at the Ancient Olympic Games. Three sprints are currently held at the modern Summer Olympics and outdoor World Championships: the 100 metres, 200 metres, and 400 metres. At the professional level, sprinters begin the race by assuming a crouching position in the starting blocks before driving forward and gradually moving int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Usain Bolt 2012 Olympics 1
Usain St. Leo Bolt, , (; born 21 August 1986) is a retired Jamaican sprinter, widely considered to be the greatest sprinter of all time. He is the world record holder in the 100 metres, 200 metres, and 4 × 100 metres relay. An eight-time Olympic gold medallist, Bolt is the only sprinter to win Olympic 100 m and 200 m titles at three consecutive Olympics (2008, 2012, and 2016). He also won two 4 × 100 relay gold medals. He gained worldwide fame for his double sprint victory in world record times at the 2008 Beijing Olympics, which made him the first person to hold both records since fully automatic time became mandatory. An eleven-time World Champion, he won consecutive World Championship 100 m, 200 m and 4 × 100 metres relay gold medals from 2009 to 2015, with the exception of a 100 m false start in 2011. He is the most successful male athlete of the World Championships. Bolt is the first athlete to win four World Championship titles in the 200& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isometric Exercise
An isometric exercise is a form of exercise involving the static contraction of a muscle without any visible movement in the angle of the joint. The term "isometric" combines the Greek words ''isos'' (equal) and ''-metria'' (measuring), meaning that in these exercises the length of the muscle and the angle of the joint do not change, though contraction strength may be varied. This is in contrast to '' isotonic contractions'', in which the contraction strength does not change, though the muscle length and joint angle do. The three main types of isometric exercise are isometric presses, pulls, and holds. They may be included in a strength training regime in order to improve the body’s ability to apply power from a static position or, in the case of isometric holds, improve the body’s ability to maintain a position for a period of time. Considered as an action, isometric presses are also of fundamental importance to the body’s ability to prepare itself to perform immediately ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
440-yard Dash
The 440-yard dash, or quarter-mile race, is a sprint race in track and field competitions. In many countries, athletes compete in the 440 yard dash (402.336 m) – which corresponds to a quarter mile. Many athletic tracks are 440 yards per lap. In the 19th century it was thought of as a middle distance race. World-record holder Lon Meyers (1858–1899) was the first person to run the 440 in under 50 seconds. In 1947, Herb McKenley of Jamaica set a world record in the event with a time of 46.3 seconds, which he lowered the following year to a new world record of 46.0 seconds. Adolph Plummer took the record under 45 seconds with a 44.9 on May 25, 1963. In 1971, John Smith lowered the world record to 44.5 seconds, which remains the world record. The 440 yard race distance used imperial measurements, which have been replaced by metric-distance races. The 400 metres The 400 metres, or 400-meter dash, is a sprint event in track and field competitions. It has been feat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mile
The mile, sometimes the international mile or statute mile to distinguish it from other miles, is a British imperial unit and United States customary unit of distance; both are based on the older English unit of length equal to 5,280 English feet, or 1,760 yards. The statute mile was standardised between the British Commonwealth and the United States by an international agreement in 1959, when it was formally redefined with respect to SI units as exactly . With qualifiers, ''mile'' is also used to describe or translate a wide range of units derived from or roughly equivalent to the Roman mile, such as the nautical mile (now exactly), the Italian mile (roughly ), and the Chinese mile (now exactly). The Romans divided their mile into 5,000 Roman feet but the greater importance of furlongs in Elizabethan-era England meant that the statute mile was made equivalent to or in 1593. This form of the mile then spread across the British Empire, some successor states of whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Furlong
A furlong is a measure of distance in imperial units and United States customary units equal to one eighth of a mile, equivalent to 660 feet, 220 yards, 40 rods, 10 chains or approximately 201 metres. It is now mostly confined to use in horse racing, where in many countries it is the standard measurement of race lengths, and agriculture, where is it used to measure rural field lengths and distances. In the United States, some states use older definitions for surveying purposes, leading to variations in the length of the furlong of two parts per million, or about . This variation is too small to have practical consequences in most applications. Using the international definition of the yard as exactly 0.9144 metres, one furlong is 201.168 metres, and five furlongs are about 1 kilometre ( exactly). History The name ''furlong'' derives from the Old English words ' (furrow) and ' (long). Dating back at least to early Anglo-Saxon times, it originally referred to the length ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
100-yard Dash
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Measurement
The imperial system of units, imperial system or imperial units (also known as British Imperial or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed through a series of Weights and Measures Acts and amendments. The imperial system developed from earlier English units as did the related but differing system of customary units of the United States. The imperial units replaced the Winchester Standards, which were in effect from 1588 to 1825. The system came into official use across the British Empire in 1826. By the late 20th century, most nations of the former empire had officially adopted the metric system as their main system of measurement, but imperial units are still used alongside metric units in the United Kingdom and in some other parts of the former empire, notably Canada. The modern UK legislation defining the imperial system of units is given in the Weights and Measures Ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1928 Summer Olympics
The 1928 Summer Olympics ( nl, Olympische Zomerspelen 1928), officially known as the Games of the IX Olympiad ( nl, Spelen van de IXe Olympiade) and commonly known as Amsterdam 1928, was an international multi-sport event that was celebrated from 28 July to 12 August 1928 in Amsterdam, Netherlands. The city of Amsterdam had previously bid for the 1920 and 1924 Olympic Games, but was obliged to give way to war-torn Antwerp in Belgium for the 1920 Games and Pierre de Coubertin's Paris for the 1924 Games. The only other candidate city for the 1928 Olympics was Los Angeles, which would eventually be selected to host the Olympics four years later. In preparation for the 1932 Summer Olympics, the United States Olympic Committee reviewed the costs and revenue of the 1928 Games. The committee reported a total cost of US$1.183 million with receipts of US$1.165 million, giving a negligible loss of US$18,000, which was a considerable improvement over the 1924 Games. The Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1896 Summer Olympics
The 1896 Summer Olympics ( el, Θερινοί Ολυμπιακοί Αγώνες 1896, Therinoí Olympiakoí Agónes 1896), officially known as the Games of the I Olympiad ( el, Αγώνες της 1ης Ολυμπιάδας, Agónes tis 1is Olympiádas) and commonly known as Athens 1896 ( el, Αθήνα 1896), was the first international Olympic Games held in modern history. Organised by the International Olympic Committee (IOC), which had been created by French aristocrat Pierre de Coubertin, it was held in Athens, Greece, from 6 to 15 April 1896. Fourteen nations (according to the IOC, though the number is subject to interpretation) and 241 athletes (all males; this number is also disputed) took part in the games. Participants were all European, or living in Europe, with the exception of the United States team. Over 65% of the competing athletes were Greek. Winners were given a silver medal, while runners-up received a copper medal. Retroactively, the IOC has converted these ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Olympic Games
The ancient Olympic Games (Ὀλυμπιακοὶ ἀγῶνες; la, Olympia, neuter plural: "the Olympics") were a series of athletic competitions among representatives of city-states and were one of the Panhellenic Games of Ancient Greece. They were held in honor of Zeus, and the Greeks gave them a mythological origin. The originating Olympic Games are traditionally dated to 776 BC. The games were held every four years, or Olympiad, which became a unit of time in historical chronologies. They continued to be celebrated when Greece came under Roman rule, 2nd century BC. Their last recorded celebration was in AD 393, under the emperor Theodosius I, but archeological evidence indicates that some games were still held after this date.Hamlet, Ingomar. "Theodosius I. And The Olympic Games". Nikephoros 17 (2004): pp. 53-75. The games likely came to an end under Theodosius II, possibly in connection with a fire that burned down the temple of the Olympian Zeus during his rei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olympiad
An olympiad ( el, Ὀλυμπιάς, ''Olympiás'') is a period of four years, particularly those associated with the ancient and modern Olympic Games. Although the ancient Olympics were established during Greece's Archaic Era, it was not until Hippias that a consistent list was established and not until Ephorus in the Hellenistic period that the first recorded Olympic contest was used as a calendar epoch. Ancient authors agreed that other Olympics had been held before the race won by Coroebus but disagreed on how many; the convention was established to place Coroebus's victory at a time equivalent to the summer of 776 in the Gregorian calendar and to treat it as Year 1 of Olympiad 1. Olympiad 2 began with the next games in the summer of 772 . Thus, for N less than 195, Olympiad N is reckoned as starting in the year 780-(4\times N) and ending four years later. For N greater than or equal to 195, Olympiad N started in (4\times N)-779 and ended four yea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaulos (running Race)
Diaulos ( Greek: Δίαυλος, English translation: "double pipe") was a double- stadion race, , introduced in the 14th Olympiad of the ancient Olympic Games (724BC). The length of each foot race varied depending on the length of the stadium. This was because the Greek foot varied widely from one locality to another, for example the stadium at Olympia was but at Delphi it was long. Scholars debate whether or not the runners had individual "turning" posts for the return leg of the race, or whether all the runners approached a common post, turned, and then raced back to the starting line. Although at Delphi an inscription referenced "turning-posts" as opposed to "turning-post", which suggests each runner had their own turning post, to prevent an outside runner from losing . These were called ''kampteres''. Archaeological evidence at Nemea Nemea (; grc, Νεμέα; grc-x-ionic, Νεμέη) is an ancient site in the northeastern part of the Peloponnese, in Greece. Formerl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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