At the same intensity, swimming and running consume little energy, but swimming is slightly higher than running. Swimming belongs to full-body stretching, and there are more muscle blocks than running; Swimming floats in the water, and moving forward requires more thrust and consumes more energy than running.

Extended data swimming is a skill that people float upward under the buoyancy of water and move regularly through their limbs by virtue of buoyancy. Swimming is divided into practical swimming, competitive swimming and synchronized swimming. The grades are: Grade III, Grade II, Grade I, Elite and International Elite. Swimming is a kind of exercise that can strengthen heart and lung function, prevent many diseases, improve immunity and release stress.

Swimming is one of the sports that men, women and children like. Ancient swimming, according to the existing historical data, is a consistent view at home and abroad, which originated from people living in rivers, lakes and seas in ancient times.

In order to survive, they must catch waterfowl and fish as food in the water, and gradually learn to swim by observing and imitating the swimming movements of fish, frogs and other animals.

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Baidu encyclopedia-swimming