Fitmix.net is a free interactive online fitness program. This the edited video for the workout on May 18, 2009. This workout features exercise groups lats, full body, calves, and cardio. Fitmix generates unique workouts for is users. The combinations of exercise groups is always changing. In test we've seen no duplicate workouts in a 60 year period of 4 day a week workouts and 6 exercises per workout.