In my New Year’s Resolutions post I talked about wanting to work on building up my core strength. I made it my main focus for the month of January, so I thought I’d share my favorite core workout with you. I LOVE the P90X Ab Ripper workout. It’s tough and hurts like heck the first couple days, but that goes away and the results are amazing. It includes ins and outs, bicycles, cross-leg sit-ups, leg climbs, mason twists and more. It only takes about 15 minutes a day, so I try to think of it in terms of how little of my time that requires each day and there is really no excuse.

Here’s a link to the Ab Ripper workout. I do 30 reps of each exercise, and have also added 30 back extensions and a 2-minute barrel roll plank on to the end. I’m always looking for new ideas, so tell me about your favorite core exercises in comments.