What is the correct breathing pattern in the butterfly stroke?

In the butterfly stroke, the correct breathing pattern is indeed for the swimmer to take a breath as the arms pull through the water and the head lifts above the water. This timing is crucial because it allows for an effective breathing technique that minimizes disruption to the swimmer's body position and stroke rhythm.

During the stroke, as the arms extend forward and then pull down through the water, the head naturally rises to allow for breathing. This coordination ensures that the swimmer maintains momentum while efficiently incorporating breathing into the stroke. It is essential for the swimmer to have good timing to ensure they are inhaling as they lift their head, thus reducing drag and maintaining a streamlined position.

Other options suggest alternate breathing strategies that are not effective for the butterfly stroke. Taking a breath every third stroke is common in strokes like freestyle but is not suitable for butterfly, where consistent timing with the stroke is critical. Breathing every stroke cycle could lead to overexertion and loss of technique, as the swimmer would frequently lift their head, disrupting the rhythm. Lastly, not taking any breath during the stroke would lead to inadequate oxygen intake, limiting performance and increasing fatigue.