back, in order to score points, prepare for a pin or in order to gain a more dominant position. Reversals or sweeps: These occur when a grappler who was underneath their opponent on the ground is able to maneuver so that they gain a top position over their opponent. Use The degree to which grappling is utilized in different fighting systems varies. Some systems, such as amateur wrestling, Pehlwani, Pehlwani submission wrestling, judo, sumo, and Brazilian jiu-jitsu are exclusively grappling arts and do not allow striking. Many combat sports, such as shooto and mixed martial arts competitions use grappling while retaining striking as part of the sport Grappling is not allowed in some martial arts and combat sports, usually for the sake of focusing on other aspects of combat such as punching, kicking or mêlée weapons. Opponents in these types of matches, however, still grapple with each other occasionally when fatigued or in pain; when either occurs, the referee will step in and restart the match, sometimes giving a warning to one or both of the fighters. Examples of these include boxing, kickboxing, taekwondo, karate, and fencing. While prolonged grappling in Muay Thai will result in a separation of the competitors, the art extensively uses the clinch hold known as a double collar tie. Grappling techniques and defenses to grappling techniques are also considered important in self-defense applications and in law enforcement. The most common grappling techniques taught for self-defense are escapes from holds and application of pain compliance techniques. Grappling can be trained for self-defense, sport, and mixed martial arts (MMA) competition. Stand-up grappling Stand-up grappling is arguably an integral part of all grappling and clinch fighting arts, considering that two combatants generally start fighting from a stand-up position. The aim of stand-up grappling varies according to the martial arts or combat sports in question. Defensive stand-up grappling concerns itself with pain-compliance holds and escapes from possible grappling holds applied by an opponent, while offensive grappling techniques include submission holds, trapping, takedowns and throws, all of which can be used to inflict serious damage, or to move the fight to the ground. Stand-up grappling can also be used both offensively and defensively simultaneously with striking, either to trap an opponents arms while striking, prevent the opponent from obtaining sufficient distance to strike effectively, or to bring the opponent close to apply, for instance, knee strikes. In combat sports, stand-up grappling usually revolves around successful takedowns and throws. Grappling is a major part of combat glima and Løse-tak sport glima, and the fight continues on the ground if both combatants end up there. In other martial sports such as MMA, the fight may continue on the ground. Ground grappling Ground grappling refers to all the grappling techniques that are applied while the grapplers are no longer in a standing position. A large part of most martial arts and combat sports which feature ground grappling is positioning and obtaining a dominant position. A dominant position (usually on top) allows the dominant grappler a variety of options, including: attempting to escape by standing up, obtaining a pin or hold-down to control and exhaust the opponent, executing a submission hold, or striking the opponent. The bottom grappler is, on the other hand, concerned with escaping the situation and improving their position, typically by using a sweep or reversal. In some disciplines, especially those where the guard is used, the bottom grappler may also be able to finish the fight from the bottom by a submission hold. Some people feel more confident on the bottom because of the large number of submissions that can