ABS

The athlete takes the starting position of lying on the back, the lower back is pressed to the floor, feet are on the floor, arms are behind the head. On the exhale, the athlete twists and pulls ribs to the pelvis by force of abdominalmuscles, on the inhale he returns to the starting position.

It is important to exclude snatches and flaps from the movement. There are plenty of variations of the abdominal muscles exercises, and they are interchangeable.