Get six-pack abs -- without leaving the house -- with the ab exercises demonstrated by personal trainer James Rizzo in these Howcast workout videos.

ABOUT THE EXPERT

James Rizzo

James Rizzo is a certified personal trainer, fitness expert and fitness model based in New York City. James' expertise is diet and exercise programs for extreme weight loss. He also offers personal training for recreational sport activities, injury rehabilitation, and intensive bodybuilding. He has been featured in several magazines as well as on television.