Tim Bornholdt

C Tolle Run - Carrie's 5 Minute Ab Workout

Sometimes, the simplest videos are the best. All we needed was Carrie and 6 minutes of tape to make what will ultimately become one of our most-watched episodes.

I love this ab workout as well. Carrie said she typically doubles each workout so it ends up being 1 minute per exercise instead of 30 seconds. I'm proud to say I can keep up with most of the extended version; I actually love doing old-school crunches. It's Katie's maintenance routine filled with planks and bridges that kill me.