アップは? バッチリです。
The above sentence is taken straight from Haikyuu!! S01E07.
The subs translate to:
アップは? > Did you get warmed up?
バッチリです。> Perfectly.
The context is a coach asks his player if he's warmed up so he can swap him into the ongoing match, to which the player responds that he did.
I am having trouble understanding アップは? Can someone break it down?