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Summary: To do abdominal crunches, contract the ab muscles by lifting the shoulders off the ground toward the lower body. Practice ab crunches with tips from a fitness trainer in this free video on ab exercises.
Les Whitley is the director of Velocity Sports Performance in Cool Springs, Tennessee. He has 12 years of experience in the field of health and fitness. He is a former ISKA Kickboxing...read more
"Hi I'm Les Whitley. I'd like to talk to you right now about doing abdominal crunches. It's important to maintain good technique and proper form to minimize the chance of impact of stressing the lower back and or the head and neck. In doing a proper crunch the goal is to maximize the contraction of the abdominal muscles to train and make them nice and tight and toned. To begin the crunch feet flat on the ground, knees bent roughly at a ninety degree angle, lower yourself down so that your upper back is flat on the ground. Tilt your hips up by flattening out your lower back and engage the lower portion of the lower abdominals. Hands either behind the head for a little additional support or across the chest would be just fine. The crunch should begin by elevating your shoulders off the ground moving them towards your lower body, contract and hold for a second, lower down just before the shoulders relax completely. Ideally you want to keep the tension on the muscle the entire time to maximize the effectiveness of the exercise. Crunch up, hold relax down, repeat the motion. Exhaling on the way up will allow all the air to come out of the lungs so that you can contract more fully and more completely, inhale on the way down to allow that muscle to elongate and stretch. As you begin this exercise start off with what feels comfortable, working your way from five to ten possibly twenty repetitions in multiple sets for a nice strong, tight mid section."