Cardio Karate - Cardio Complexes is not only cardio demanding but emphasizes muscle endurance for the ultimate warrior body. There are 5 sets of different martial arts pods that are done without weight on the first rep set. The use of malleable sand weights is added in the second and third sets of each pod to build strength and muscle endurance in the muscles involved. This is a fat-burning sizzling workout that also includes and core section and relaxing stretch.