Join Nike [1] Master Trainer Betina Gozo [2] on this HIIT interval workout that will leave you thanking her for your toned body and tight booty! The workout includes three intense circuits of full-body moves, each time varying your work and rest periods. Bring a water bottle; you will crave those breaks. (Don't worry, you get them!) Betina's can-do attitude and constant smile will encourage you to push it to the limit! Ready? Let's HIIT it!