Looks like an easy exercise that I could do while playing with the kids. Elbows and toes, tighten the abs, hold, and repeat. Would help get rid of the post-prego tummy!
25 Most Deceiving Exercises (They Tone More than You Think!) core, glutes, hams, and calves!!!
Another Pinner< Jillian Michaels Workout: 4 Amazing Abs Exercises. I like this woman a lot. Her workouts usually aren't that complicated, but man do they make you sore the next day.