The cross-body crunch exercise is a variation of the crunch that works both the upper and lower portion of the abs.

Steps :

1.) Start off lying on your back, bringing your knees up in a 60 degree angle, keeping your feet flat on the floor and placing your hands on either side of your head.

2.) Slowly curl up raising your right elbow and your left knee so that they touch over your chest.

3.) Curl up raising your right elbow and your left knee so that they touch over your chest.

Tips:

1.) Contract your abs as you twist during this exercise.