HIIT 2020-07-14 Added July 14, 2020 by Brenda Dowe, Filed under: IntermediateWorkout Type: bosu | Circuit | HIITA high intensity circuit using a BOSU ball. 10 exercises, 10 reps (each side), 4 rounds. Note: If you don’t have a BOSU you can do all of the exercises on the floor without it.