A popular sport in summer – swimming

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Common swimming strokes are generally divided into breaststroke, frog stroke, butterfly stroke, and backstroke. Backstroke is the fastest, breaststroke has a more graceful posture, butterfly stroke has the greatest explosive power, and freestyle requires the least amount of energy. In freestyle swimming, the Australian Wells used a swimming style in 1850 in which both arms moved in front of the water; this can be considered the precursor to freestyle swimming. Later, British swimmer John Trudgen adopted a swimming style in 1873 that involved breaststroke kicks combined with alternating forward movements of the arms; subsequently, Australian Richard Carr developed a kicking technique involving ‘light splashing’ based on Trudgen’s and Aleixandre’s swimming styles. Since then, there have been only slight changes in the way the legs are kicked. There are various forms of the complete coordination in freestyle swimming. Typically, it is common to pull the oar 2 times, stroke the water 6 times, and breathe 1 time. Breaststroke is a swimming stroke that imitates the swimming motion of a frog. When swimming breaststroke, the swimmer can easily check for obstacles ahead to avoid hitting them. In the mid-18th century, in Europe, breaststroke was called “frog swimming”. Due to its relatively slow speed, in the freestyle competitions of the early 20th century (freestyle swimming without a specified stroke style), breaststroke was not as fast as other strokes, which led to its technique being marginalized. Subsequently, the International Swimming Federation established swimming strokes, which enabled the development of breaststroke technique. Backstroke: In its early form, backstroke involved simply floating on the surface of the water, then using the kicking motion used in breaststroke to move forward. At the 1900 Olympic Games, swimmers began using a swimming style in which they moved their hands forward above the water’s surface; the kicking motion involving stepping was not introduced until the 1912 Olympic Games in Stockholm. Butterfly stroke: The swimming technique for the butterfly stroke was first used by the German swimmer Erich Rademacher in a breaststroke competition in 1926; at that time, he still used the kicking style associated with breaststroke. After the 1952 Olympic Games, the International Swimming Federation (FINA) decided to separate this swimming style from breaststroke; as a result, the butterfly stroke was introduced, and swimmers were able to use a dolphin kick.