One of the easiest abs exercises to perform is the torso twist
. Much like the side bends, torso twists will also require the individual to be in a standing position. However, instead of tilting the body from one side to another, this exercise requires the individual to rotate the upper body from left to right, and then vice versa. This should be done with the stomach sucked in and the legs kept straight. This exercise specifically targets both the external and internal oblique muscles.