Left-right up-down swing with changing feet

발 바꾸어 좌우 상하 후리기 (bal bakkueo jwau sangha hurigi) is a basic swinging exercise (hurigi) in kumdo, as described in the textbook of the Korea Kumdo Association (대한검도회).

Hurigi is the stage at which, once the grip of the bamboo sword (죽도, jukdo) has been learned, the sword is first used to learn striking; the textbook says it should be learned before the basic strikes. Its two basic forms are the 정면 상하 후리기 (front up-down swing) and the 좌우 상하 후리기 (left-right up-down swing). The 발 바꾸어 좌우 상하 후리기 is the version of the latter that uses open-step walking (벌려걷기, beollyeogeotgi).

• First, moving diagonally forward to the right with open-step walking, the sword is swung at 45° from the upper right down to the lower left.
• Then the left foot opens forward on the left diagonal, the body turns, the right foot is brought behind the left foot, and the sword is swung at 45° from the upper left down to the lower right.

In the 좌우 상하 후리기 in general, the sword comes down diagonally at about 45° to each side. The blade direction must be symmetrical, at the same angle on both sides. The left hand must not leave the body's centre line (정중선, jeongjungseon).