Which stroke is characterized by a frog kick?

The stroke characterized by a frog kick is the breaststroke. In breaststroke, swimmers execute a unique kick that involves bending the knees and bringing the heels toward the glutes, followed by a sweeping motion outward and then a snap back together—this mimics the motion of a frog's legs, hence the name.

The breaststroke also has a distinct arm movement where the arms move in a circular fashion, combining with the frog kick to create a rhythm that is essential for propelling the swimmer forward. This technique requires a coordinated timing of the kick and the arm movements, making it a stroke that is often taught at an early stage in swimming lessons for its fundamental position in swimming.

In contrast, the other strokes incorporate different kicking techniques: backstroke utilizes a flutter kick, butterfly employs a dolphin kick, and freestyle also features a flutter kick. Each of these strokes is defined not only by its arm movements but also by the specific kicking technique employed, which is why breaststroke, with its recognizable frog kick, stands out distinctly from the others.