Abs Express

A fit torso doesn't just help you look good in a bikini (though that's definitely a plus): strong abdominal muscles protect your back by providing stability and improving posture. Crunches are one of the most effective ab exercises, so here's a great routine from 15 Minute Abs Workout to sculpt your belly and condition your core. 

To avoid injury and get blood and oxygen flowing throughout your body, make sure you thoroughly warm up by running in place or doing jumping jacks for a few minutes before beginning the routine, or add these moves to the end of an aerobic workout. 

Joan partnered with Spa Magazine for their March/April 2009 issue for this article. 

See the Moves