Which swimming drill is commonly used to improve freestyle technique?

The catch-up drill is widely recognized for enhancing freestyle technique because it emphasizes proper arm movement and body position in the water. In this drill, swimmers extend one arm forward while the other arm remains at their side until the extended arm reaches it. This helps swimmers focus on the glide phase of their stroke and promotes a streamlined body position, which is crucial for effective freestyle swimming. Additionally, it encourages efficient breathing practices and helps to develop a better feel for the water, as swimmers learn to time their strokes more effectively. By isolating and refining the arm movement in this controlled manner, swimmers can significantly improve their overall freestyle efficiency and speed.