Want a rower's six pack?... Just do this - YouTube
Amazon.com : Vive Rowing Machine - Magnetic Row Equipment - Foldable Exercise Workout Rower for Women and Men - at Home Seated Indoor Fitness Device - Portable with Digital Monitor and Adjustable
Core + Cardio Circuit with the Rower | Pumps & Iron
Amazon.com : WONDER CORE II Rowing Set (Basic) : Sports & Outdoors
3 Ways To Tone Your Abs on the Rowing Machine | SELF