I am a young, new home-owner and need some advice

....thank you in advance to all who respond!
We have a mostly finished basement, and there is a room down there that we are planning to make our home gym. The previous homeowner had started to finish the room by putting up walls and painting them, but left the cement floor alone.
Can anyone suggest what we need to do to finish the floors? We were thinking of installing vinyl tiles, but are open to a more gym-like flooring if anyone has suggestions. Also, what would we need to do to prep the cement floor?
Again, thanks for any help you can offer!