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A knockout (abbreviated to KO or K.O.) is a fight-ending, winning criterion in several Contact sports , such as boxing, kickboxing, Muay Thai, mixed martial arts, karate, some forms of taekwondo and other sports involving striking, as well as fighting game-based . A full knockout is considered any legal strike or combination thereof that renders an opponent unable to continue fighting.
The term is often associated with a sudden traumatic Unconsciousness caused by a physical blow. Single powerful blows to the head (particularly the jawline and temple) can produce a cerebral concussion or a carotid sinus reflex with syncope and cause a sudden, dramatic KO. Body blows, particularly the liver punch, can cause progressive, debilitating pain that can also result in a KO.
In boxing and kickboxing, a knockout is usually awarded when one participant falls to the canvas and is unable to rise to their feet within a specified period of time, typically because of exhaustion, pain, disorientation, or unconsciousness. For example, if a boxer is knocked down and is unable to continue the fight within a ten-second count, they are counted as having been knocked out and their opponent is awarded the KO victory.
In mixed martial arts (MMA) competitions, no time count is given after a knockdown, as the sport allows submission grappling as well as ground and pound. If a fighter loses consciousness ("goes limp") as a result of legal strikes, it is declared a KO. Even if the fighter loses consciousness for a brief moment and wakes up again to continue to fight, the fight is stopped and a KO is declared.http://mixedmartialarts.com/mma-news/341856/Herb-Dean-The-fight-is-over-when-hes-unconscious As many MMA fights can take place on the mat rather than standing, it is possible to score a KO via ground and pound, a common victory for grapplers.
In fighting games such as Street Fighter and Tekken, a player scores a knockout by fully depleting the opponent's health bar, with the victor being awarded the round. The player who wins the most rounds, either by scoring the most knockouts or by having more vitality remaining when time expires during each round, wins the match. In some fighting games like Soul Calibur as well as platform fighters like Super Smash Bros, the player can also score a KO when the opponent fall off the fighting area. This differs from combat sports in reality, where a knockout ends the match immediately. However, some fighting games aim for a more realistic experience, with titles like Fight Night adhering to the rules of professional boxing, although technically they are classified as sports games, and share many of the same features as NFL and NBA video games.
In MMA bouts, the referee may declare a TKO if a fighter cannot intelligently defend themselves while being repeatedly struck.
In amateur boxing, a double knockout result is determined based on the round of competition. In all contests except the final, both fighters are declared to have lost the contest and are eliminated. In the final, where there must be a winner, the contest ends as if the bell sounded at the end of the final round, and the round is scored, with the winner determined by points. However, if both boxers are downed, both rise up, but one has reached the limit of knockdowns, the winning boxer is the one who has not reached the three/four knockdown limit.
A basic principle of boxing and other combat sports is to defend against this vulnerability by keeping both hands raised about the face and the chin tucked in. This may still be ineffective if the opponent punches effectively to the solar plexus.
A fighter who becomes unconscious from a strike with sufficient knockout power is referred to as having been knocked out or KO'd ( kay-ohd). Losing balance without losing consciousness is referred to as being knocked down ("down but not out"). Repeated blows to the head, regardless of whether they cause loss of consciousness, may in severe cases cause or paralysis in the immediacy, and over time have been linked to permanent neurodegenerative diseases such as chronic traumatic encephalopathy ("punch-drunk syndrome"). Because of this, many physicians advise against sports involving knockouts.
A flash knockdown is a knockdown in which the fighter hits the canvas but is not noticeably hurt or affected.
Double knockout
A double knockout, both in real-life combat sports and in fighting game-based , occurs when both fighters trade blows and knock each other out simultaneously and are both unable to continue fighting.
Physical characteristics
Little is known as to what exactly causes one to be knocked unconscious, but many agree it is related to trauma to the Brainstem. This usually happens when the head rotates sharply, often as a result of a strike. There are three general manifestations of such trauma:
Knockdown
A knockdown occurs when a fighter touches the floor of the ring with any part of the body other than the feet following a hit, but is able to rise back up and continue fighting. The term is also used if the fighter is hanging on to the ropes, caught between the ropes, or is hanging over the ropes and is unable to fall to the floor and cannot protect himself. A knockdown triggers a count by the referee (normally to 10); if the fighter fails the count, then the fight is ended as a KO. Boxing Terminology Ringside by Gus. URL last accessed June 17, 2008.
Boxing's 50 knockout club (professional boxers with 50 or more knockouts)
See also
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