This exercise works the obliques. It has a minor impact on health in comparison with the possible risks.
Stand up straight, legs should be shoulder width apart with toes pointed out.
Place the bar on the trapezoids.
As you exhale, turn your torso from one side to another by twisting the waist. Keeping your pelvis stationary.
As you inhale, return the torso to the starting position.
It's one of the most dangerous exercises for the lower back. If you have lower back pain, this exercise is forbidden.