Workout in a short time with high intensity. Then high intensity interval training (HIIT) is perfect for you! It is a low-intensity exercise in which intervals are interspersed with high intensity intervals. The exercises vary per class so you always is re-act. Due to the high intensity at which the intervals are carried out, the heart rate increases which results in a maximum fat burning. HIIT is the ideal lesson if you want to lose weight and want to improve your condition.