I've noticed that typically in ITF orgs, when one bows, the arms appear to be extended outward to the side in a 45 degree angle (as opposed to arms down to the side). Anyone know the history/reasoning behind this? Was it always performed this way?
The arms should
not be at a 45 degree angle, though many people seem to have them extended that far when bowing for some reason. According to Gen. Choi, when bowing you take an Attention Stance (Charyot Sogi). The feet form a 45 degree angle betwen the toes. As for the arms, one is to "Drop the fists down
naturally, bending the elbows slightly" (emphasis added). Your fists should be clenched slightly and your eyes focus slightly above the horizon (when standing at attention).
When you bow you bend your body forward only 15 degrees. Your eyes are kept on your opponent's eyes.
A note about the dropping the arms naturally, thing. That doesn't mean they go straight down to your sides, nor should they IMHO be extended as much as you've specified. I won't give it an exact number of degrees, but 45 seems too much to me. I have seen many people also extend their arms backward for some reason when bowing. This is also incorrect. As is exposing your wrists forward.
You can see a video of Gen. Choi explaining how to bow here:
http://www.youtube.com/watch?v=l0WkBP-wRG8&feature=plcp
As for how long it's been performed this way, at least since 1972 (it's described as such in Gen. Choi's 1972 textbook and the later Encyclopedia of Taekwon-Do). I didn't see specifics in the 1965 book on how to bow so can't say for certain if it was different then. There's some more etiquette about who bows first, who rises up first, etc. but that doesn't really touch on
how the bow itself is performed.
As far as I can tell, an ITF bow is something akin to a salute in the military. There aren't any more formal bows, seated or standing, unlike in some martial arts.
Pax,
Chris