The origins of butterfly swimming

2025-09-03

The butterfly stroke , one of the four major swimming styles, is renowned for its graceful movements, explosive power, and demanding technique. As the latest of the standard swimming styles, it not only holds a pivotal position in competition but is also beloved by swimming enthusiasts of all kinds. So, how did the butterfly stroke originate? And what are its evolutions? This article, in Traditional Chinese, will provide a detailed analysis of the butterfly stroke’s origins and development.

Background of the Birth of Butterfly

1. Originated from the improvement of breaststroke

The butterfly stroke wasn’t originally a distinct swimming style; it actually evolved from the breaststroke .
In the early 20th century, swimmers and coaches experimented with improving the breaststroke to increase speed. The traditional breaststroke required simultaneous underwater thrusting with both arms and backward kicking with both legs, but this movement presented significant resistance underwater, limiting speed.

To improve their racing performance, some athletes began experimenting with shifting their arms to paddle forward out of the water and then back in . This motion, similar to the flapping of butterfly wings, became known as the ” butterfly arm .” This modification significantly reduced water resistance and led to a significant increase in swimming speed.

2. The formation of the early butterfly style (1930s)

In 1933 , American swimmer and coach Henry Myers first demonstrated the technique of pulling both arms out of the water simultaneously in competition.
In 1935 , another American coach, David Armbruster, further studied and perfected the butterfly arm movement at the University of Iowa, and together with athlete Jack Sieg, developed a new kicking method: the Dolphin Kick , which is to swing both legs up and down simultaneously, imitating the movement of a dolphin when swimming.

In this way, the two core techniques of modern butterfly style – synchronized paddling of the arms and synchronized swinging of the legs – have been initially formed.

Butterfly-style formal recognition and rule-making

1. Initially merged with breaststroke for competition

Initially, the butterfly arm and dolphin kick were not considered separate strokes, but rather a variation of the breaststroke. Many competitors used the butterfly action in their breaststroke competitions, significantly improving their performance and sparking controversy among other competitors.

2. Independent butterfly

In 1952 , the International Aquatics Federation (FINA) officially recognized the butterfly stroke as the fourth standard swimming style independent of the breaststroke .
From then on, the butterfly stroke became an independent event in major competitions, and clear technical specifications were formulated, such as both arms must emerge from the water at the same time and both legs must swing in coordination.

This marked the butterfly stroke officially becoming an indispensable part of modern swimming.

The evolution and improvement of butterfly technique

As time went on, the technical details of the butterfly style were constantly refined, and the athletes carefully polished each movement:

Take-off and entry into the water : A streamlined posture is required to minimize resistance.
Underwater Dolphin Kick : In modern competitions, a powerful dolphin kick can be performed during the underwater phase after taking off and turning, greatly increasing speed.
Arm movement : Use your arms to generate force from your shoulders, creating a double “S”-shaped path to push the water, improving propulsion efficiency.
Breathing rhythm : The swimmer needs to raise his head and breathe quickly after every two or three strokes to avoid stalling.

Top butterfly skaters are able to demonstrate a high level of rhythm, power, and flexibility.

The importance of modern butterfly

1. Competition Events

The butterfly stroke is currently one of the main swimming styles in international competitions, covering events of different distances, including:

50m butterfly
100m butterfly
200m butterfly
Personal Hybrid (Butterfly as one segment)

In addition, the butterfly stroke is a key segment in many relay events (such as the 4×100m medley relay).

2. Famous players

Michael Phelps : A legend in American swimming, known as the “Flying Fish”, he has repeatedly set world records in the butterfly event and established numerous gold medal records.
Kristóf Milák : Hungarian swimmer who broke the world record in the men’s 200m butterfly.

These top athletes have driven the continuous advancement of butterfly stroke technology and brought the charm of butterfly stroke to audiences around the world.

Summary: The origin and inheritance of the butterfly pose

Origin : It originated from the modification of the breaststroke in the early 20th century, which was formed by the synchronous water exit of both arms and the dolphin kick technique.
Independence : It was officially recognized as the independent swimming style by the International Swimming Federation in 1952.
Development : With the evolution of technology, butterfly stroke has become one of the most challenging and spectacular swimming styles in modern swimming competitions.
Modern significance : The butterfly stroke not only tests the athlete’s physical strength, skills and sense of rhythm, but is also a focal event in swimming competitions that combines speed and beauty.

The butterfly stroke, a swimming style derived from technological innovation, has now become a shining pearl in swimming, continuing to attract the attention of countless athletes and spectators around the world.