The conclusions of the summer swimming training course are as follows:

Dear friends, swimming can not only bring us coolness and comfort in hot summer, but also cultivate our aquatic survival skills and various swimming techniques, as well as cultivate our tenacious style and strong physique. After a month's study in the swimming interest class, I think everyone has gained a lot. Finally, I sincerely wish you good health, academic progress and all the best. Thank you!

Data expansion:

Modern swimming originated in England. From 65438 to the 1960s, swimming activities in many parts of Britain were quite active. Swimming in China was introduced from Europe and America in the middle of19th century and gradually became popular. At first, it was popular in Hong Kong and coastal provinces such as Guangdong, Fujian, Shanghai and Qingdao, but later it spread to the mainland.

1887 A 25-yard indoor swimming pool was built in Shamian, Guangzhou. Since then, China has gradually started to hold competitive swimming competitions. According to the data, swimming events have been held in the Third National Games since 1924. China Swimming Team has won 15 gold medals in the history of the Olympic Games since it first participated in the Olympic Games in 1984.

Swimming is divided into four postures: butterfly, backstroke, breaststroke and freestyle. Butterfly is called "butterfly" because the shape of arm movements is like butterflies flying; Backstroke is called "backstroke" because the human body backstrokes in the water; Breaststroke is named "breaststroke" because it imitates the movements of frogs swimming in the water.

In freestyle, you can use any stroke. It is found that freestyle is the fastest in freestyle competition. Later, in the freestyle competition, all countries adopted freestyle technology, so the freestyle that followed was also called "freestyle".

Which stroke a beginner learns first generally depends on the teaching task or the situation of the practitioner. Every swimming technique includes the coordination of legs, arms, arms and breathing, and the coordination and complete coordination between arms and legs. No matter which stroke you learn first, you usually practice in the order of leg → arm (arm and breathing are coordinated) → arm and leg coordination → complete coordination.