1. The origin of dolphin posture:

Dolphin posture is a swimming posture, which is named after it is similar to the graceful and flexible movements of dolphins in the water. This posture requires the swimmer to paddle at a high speed in an arc trajectory, which produces an action similar to that of a dolphin jumping out of the water.

2. The characteristics of butterfly stroke:

Butterfly stroke is a difficult swimming posture and one of the most ornamental events in competitive swimming. In butterfly stroke, swimmers need to do arm stroke and leg kick at the same time, showing a smooth posture like a dolphin, so it is also called dolphin style.

3. The stroke in butterfly stroke:

In butterfly stroke, the swimmer's stroke action mainly includes two stages: arm stroke and leg kick. When the arm is paddling, the swimmer pulls the arm forward from the horizontal position, and the arm bends until the thigh is horizontal. When the legs push the water, the swimmer's legs merge and push the water hard, kicking down from the water.

4. Breathing skills in butterfly stroke:

Breathing in butterfly stroke is a key skill, which is also closely related to the posture of dolphins. Swimmers need to stretch their heads forward with their arms when paddling, and look up at the water to breathe when pedaling. This breathing action is closer to the shape of a dolphin jumping out of the water.

5. Competitive development of butterfly stroke;

As a competitive event, butterfly swimming occupies an important position in the international swimming world. It is one of the official events of the Olympic Games and other international competitions. Because of the high technical difficulty of butterfly stroke, it requires high endurance, strength and flexibility of swimmers, so butterfly swimmers are often the elite of swimming teams.

6. The fitness effect of butterfly stroke:

Butterfly swimming is not only a competitive event, but also an excellent fitness exercise. The stroke of butterfly stroke involves the muscle groups of the whole body, which can enhance the muscle strength of upper limbs, waist and abdomen and lower limbs, and improve the cardiopulmonary function and endurance level. At the same time, butterfly stroke can also help improve posture and coordination, and has obvious effects on shaping body and strengthening physique.