Step V, taking the right foot as an example, is a footwork in which the right foot takes a step forward to the right, bends its knees to cushion, and the left foot takes a step forward to the left to bend its knees and squat, and the trajectory of both feet is V-shaped, and then returns to its original position in turn from the right foot.
Aerobic exercise: the continuous rhythmic exercise of large muscle groups as the function of human aerobic system.