Iron Maiden is a total body core strength and endurance workout that will get you into the sweat zone within minutes of starting. It is great for gaining better control of your body, activating muscle groups and gaining more power in your physical performance. If you are looking for a workout that will challenge your strength, endurance and coordination then this is the one.
Extra Credit: Do 20 lunge step-ups on one side and then 20 on the other side each time instead of changing legs.