1934 was publicly performed at the Chicago World Expo, and the word synchronized swimming was used for the first time. Since then, the sport has spread all over the world. 1946, the national synchronized swimming championship was held in the United States. 1956, FINA decided synchronized swimming as an official event at the Melbourne meeting. Synchronized swimming was first held at the World Swimming Championships held in Belgrade from 65438 to 0973. Since the 23rd Olympic Games, two synchronized swimming events, single and double, have been added.
Synchronized swimming competition can be divided into compulsory action and optional action. There is no music accompaniment in the prescribed action competition, which is a single basic skill competition. * * * Divided into 6 groups, each group includes 6 moves, and each movement has a difficulty coefficient. Draw lots to decide which group of actions to do. The optional action competition is divided into three events: single, double and group (4~8 people). The movements can be edited and created freely, and the competition time has its own regulations, including 20 seconds for land movements and 3 minutes and 30 seconds for individual events; 4 points in the double match; 5 points for the collective project, with allowable error 15 seconds. The ending action must end in the water. It is required to wear a dark swimsuit and a white hat. There is no explicit provision for clothes with optional movements, and headdresses can be worn. The whole set of movements can adopt dance movements, changes in various swimming methods, artistic modeling, jumping in the water, turning around, rotating and other movements, which require coherent movements, clever connection, coordinated movements among athletes and coordinated movements with music rhythm.
Synchronized swimming is conducted in a pool with an area of 144( 12× 12) square meters and a depth of 3 meters, and the pool surface of the optional action competition can be expanded. The pool water must be clear and bright, and the water temperature should conform to the rules of swimming competition. Speakers installed underwater must be synchronized with speakers installed on land. The referee consists of five or seven people, and the scoring method is similar to diving competition.