The other three strokes are mainly hand movements, and the hand stretches in the air, which has no braking effect. In addition, the leg movements of the other three strokes are wavy legs and have no braking effect. Breaststroke is the most labor-saving swimming posture and one of the easiest swimming postures to learn. Therefore, breaststroke is the main teaching content of swimming beginner courses in some universities. Breaststroke may be the reason why many fitness swimmers like it. Breaststroke is an ancient swimming style.
According to records, as early as 2000~4000 years ago, China, Rome and ancient Egypt had similar swimming styles. On August 24th, the famous swimmer M weber swam across the English Channel with a breaststroke of 2 1 hour for 45 minutes. Breaststroke is the first position used in swimming competitions in the early19th century. However, due to the slow speed of breaststroke, there are fewer and fewer people who appear side stroke, crawl stroke and breaststroke in the competition. Breaststroke was not separated from other postures until the third Olympic Games in 1904. Breaststroke is the most tiring, but it may not be. Most people's legs have the strongest anti-lactic acid and anti-fatigue ability, far exceeding their arms, so breaststroke is a posture that most people can adopt in swimming. In fact, the conventional breaststroke requires both hands to generate strong hydraulic power to make the body fluctuate higher, so that you can generate strong pressure driving force in the water.
Breaststroke is tired of holding water, and its meaning is as wonderful as breaststroke. The technical performance, fluency and flexibility of breaststroke and butterfly are vividly displayed in the competition, which is not available in freestyle competition. Although butterfly also uses arm muscles and shoulder muscles, the pertinence is different (such as trapezius muscles), and then the use of abdominal muscles. The difference between breaststroke and freestyle is even greater. Breaststroke mainly uses the large muscle groups of buttocks and legs (such as gluteus maximus, biceps femoris and gastrocnemius). Therefore, the existence of every stroke has its necessity, and swimming in various strokes can exercise muscles in all parts of the body.