Shift your workouts into high gear with this low-impact cardio routine from The Firm that targets your arms, legs and midsection with easy-to-follow movements that guarantee real results after 10 sessions. Led by fitness instructor Alison Davis, the program includes two options for exercisers whose schedules tend to fluctuate from day to day: a 45-minute "complete" workout and an abbreviated 25-minute "express" workout.