What does the "Windmill Arms" technique refer to in the backstroke?

The "Windmill Arms" technique in backstroke refers specifically to the motion of the arms as they move in a circular, windmill-like pattern during the stroke. This technique emphasizes the importance of rotating the arms in a smooth, efficient manner to create propulsion through the water.

When swimming the backstroke, the swimmer’s arms alternate in a windmill motion, which is crucial for maintaining balance and speed. The correct answer, focusing on the distance of 15 yards, indicates a foundational distance often used in swim instruction to develop and practice this technique effectively. During swim lessons or training sessions, a distance of 15 yards allows swimmers to focus on their form and technique without being fatigued, ensuring they can concentrate on executing the windmill arm action correctly.

Other distances might either be too short to fully engage with the technique or too long for beginners who are still developing their skill. The choice of 15 yards strikes a balance that allows for ample practice while reinforcing the arm movement essential to effective backstroke swimming.