Originally Posted by fuzz nation
They may vary a bit from one facility to another, but the one place near me with indoor carpets had INSANE traction the first time I played there. My regular hard court tennis sneaks were rather new, so they had a good fresh tread, but this wasn't a good thing on the carpet. It actually put a lot of extra stress on my legs because there was so much less give when I'd change direction. Running in a straight line was okay, but pivoting and moving laterally was tricky because my feet stuck to the court too much. MUCH too much!
After that first outing, I've been smart enough to keep some older sneaks handy so that I can get just the right traction I need if I go back there. While the difference might seem minimal on a local hard court with smoother vs. fresher treads, it's an incredible difference on a carpet.
For the record, I also have some grass court shoes and I wouldn't bring those things anywhere near a carpeted court.
Definately only wear shoes with a special outsole if you are playing on carpet.
If you wear regular shoes with normal traction, even if they have been used quite a bit, the traction will probably be too much.
You won't be able to slide on the court, and as a result you will be "stuck" when trying to move from one direction to the other quickly.
This is especially dangerous for your knees and ankles.
You can do some serious damage, honestly!