Neither is ballet. Ballet requires the flattest surface.
That's bodybuilding talk. Bodybuilding is modeled on Greek statues. Statues don't move. Neither can bodybuilders. I had a lady friend who was a mini-triathlete. When I taught her to play tennis she noticed great improvements in her legs. Because in running you only run in one direction, forward. In tennis you move, forward, backward, left, right, and everything in between.
Ballet dancers is all about form. And they know everything about injuries.
Bodybuilding talk.
How do you know? I bet ballet dancers know more about balance than anybody.
NO one on Earth knows how to build core strength better than ballet dancers, none.
Check out a professional ballet dancer training on a Bosu ball.
https://www.instagram.com/p/BQp85tHjS_X/?tagged=abtfit
It's not body building talk (lol) and I'm not, nor have I ever desired to be a body builder, but the fact is weight training will enhance almost ANY sport you play and that is a proven fact which you apparently don't seem to grasp. I think the people you are referring to are the ones on roids and those are the idiots. How do you ascertain that Ballet dancers know "everything" about injuries and that no one on earth knows how to build core strength better than ballet dancers? You're joking in your reply, right? You can't be serious in what you just posted and if you are, (no offense to you) you obviously have no idea what you're talking about. The majority of people you see in your average gym are NOT body builders as you assume and many of them play sports and work their muscles in a gym so that they can perform better in the sport they play and help PREVENT injuries. Why do you think almost all the ATP folks do weight training?
Cheers