Crunches - Abdominal Exercise
In this lesson you will learn how to do crunches. The crunch is one of the best and most popular abdominal exercises for the upper abs. Lie down on your back, put your hands behind your ears in order to support your neck and roll your shoulders off the ground slowly until your ab muscles are fully contracted. Do about 25 repetitions per set and train your abs at least 3 times a week. Find more abdominal exercises on the weight training main page.