1. What are the basic characteristics of butterfly stroke?
Butterfly stroke is a relatively difficult swimming posture, characterized by continuous flapping of both arms and coordinated kicking of both legs. Swimmers move in a "well" shape in the water and swim gracefully and quickly like dolphins.
2. What is the history and origin of butterfly stroke?
Butterflies originated in Europe in the 1930s. At that time, people began to try to improve swimming speed by flapping their arms at the same time, which led to butterfly swimming. Compared with the modern butterfly stroke, the original butterfly stroke is relatively stiff, and then it gradually evolved into a modern butterfly stroke through continuous improvement and perfection.
3. What are the technical requirements and skills of butterfly stroke?
Butterfly requires swimmers to have strong coordination, flexibility and strength. The main technical requirements include correct breathing rhythm, high-frequency arm flapping, fast and powerful leg pedaling, good body balance and streamlined movements. Swimmers need to master the correct posture and skills through constant training and adjustment in order to swim faster and smoother.
4. What are the exercises and benefits of butterfly stroke for the body?
Butterfly stroke is a systemic exercise, which can effectively exercise the muscles of all parts of the body. Butterfly stroke pays special attention to the strength and coordination of back, arms and legs, which can enhance the strength of upper limbs, abdominal muscles and lower limbs, and improve cardiopulmonary endurance and body flexibility. At the same time, butterfly stroke can also improve respiratory control and cardiovascular function, promote metabolism and lose weight.
5. What is the position and application of butterfly in swimming competition?
As a swimming stroke with high technical difficulty, butterfly is listed as one of the main events in swimming competition. In the competition rules stipulated by FINA, butterfly stroke, as one of the four standard strokes, has special events and rules. Although the butterfly stroke is faster in the competition, not all swimmers can master this stroke because of its high technical requirements and long-term training and physical preparation.