The twisting crunch exercise is a variation of the normal crunch, which places more emphasis on the oblique abdominals towards the side of the stomach. lie flat on the mat or the floor and position your hands behind your head. Flex and twist your waist to raise your upper torso. Rotate the trunk to bring your right elbow in towards your left knee. return until the backs of your shoulders almost touched the floor. The same motion can be applied during the inverse and bringing your left elbow in towards your right knee.
While you cannot increase the difficulty of this exercise, you can concentrate on slow speed and perfect execution. Also, don't cheat yourself by joking your upper body if you want, you can also do all of your reps for one side first and then switch to the other side.