A Zumba group exercise class is 55 minutes in length. The dance movements are simple and easy to follow. The instructor may include moves from Latin dance styles like the mambo, cha cha cha and salsa. In addition to this Latin flavor, many instructors create an international feel by incorporating swing and belly dance moves into the mix. The class routine features interval training where fast and slow rhythmic movements are combined with resistance training. This combination, along with cardio exercise, helps to tone and sculpt your body while burning fat.