Ever wonder what could possibly get between Madonna and her workout? Not her trainer’s broken nose, we now know. “I broke my nose on the [exercise] cube that I invented for her,†Tracy Anderson, the woman responsible for Madge’s distressingly toned body parts, told us last night at the Bent on Learning benefit. “I had to go to the emergency room in the middle of [the workout].†And Madonna? “She kept doing her leg lifts! She’s disciplined.â€