Barre fitness is a hybrid workout class – combining ballet-inspired moves with elements of Pilates, dance, yoga and strength training. Most classes incorporate a ballet barre and use classic dance moves such as plies, alongside static stretches. Barre also focuses on high reps of small range movements. But the real difference between barre and other workouts are the isometric movements you usually perform – holding your body still while you contract specific muscles, until you shake and feel the burn.