Bent Over Twists

What exercise does: These Bent Over Twists tighten the obliques.

Implementation:
(A) First Stand with your feet apart, place a bar across the back of your shoulders, hold it, and bend forward from the waist as much as is comfortable.
(B) Having your head steady, and blocking your pelvis from rotating, intentionally turn your upper body and shoulders in one direction as far as possible. Keep at the extreme rotated position, then turn your torso and shoulders back in the other direction as far as you can, making sure you don't swing and that you keep the movement under control.