Hi GhostNight,
I've played against people who have stood up during most of the game. In fact, I played against one person who stood on their chair, loudly smacked their chewing gum, mumbled to themselves, and messed around with the captured pieces by the side of the board... All at the same time, too. But I'm assuming you aren't planning to do that...
Seriously though, I don't find it distracting at all when my opponent stands up during a game. It is, as far as I know, perfectly legal. And it is very common, even at master level, I think, to stand up and walk around the tournament room when it is your opponent's move.
I'm pretty sure it wouldn't be a problem, and I wouldn't let it stop you from participating. If you are worried that it might be a problem, I'm sure you could explain the situation to the tournament director before hand, and that you could work something out.
Hope this helps,
-hankm
Have a interesting question I think especially for those that play alot of OTB tournament games. We have a tournament coming up here in Oct., State closed. And I would love to play in it , but,now that I have aged have trouble sitting long periods. So I would like to trade off stand and sit etc. How does that make you feel if I am playing against you. When I was younger, I do not ever remember any one standing and playing chess. I also find that I can make my move and walk away from the board until my opponent makes there move. I find it helps give a a new and helpful perspective then just gazing at the board. What do you think with this make you uneasy to play against some one that does that?? Thanks for your input, it would make up my mind if I should play or not?