Prevention Fitness: Express Workout - Abs [DVD](中古品) (中古品)Prevention Fitness: Express Workout - Abs [DVD]/Gaiam - Fitness//Amazonより Chris Freytag is one of the most motivational exercise leaders out there, and her style is both approachable and encouraging. This video features four 12-minute abs-focused routines, which Chris talks you through easily. The overall focus of the workouts seem tailored more to beginners-which is fine, because it's easy to modify to make things more challenging. You'll need a stability ball to be able to do all the ex