If you are interested in seeing high speed video of what a pitcher’s body does when throwing a ball, then I suggest that you view this video (beware that it’s 10MB)…
- ASMI High Speed Video Of Pitcher
http://www.asmi.org/asmiweb/FBsideview.mpg
I have some problems with what the pitcher is doing in the video – in particular how high he takes his elbows above his shoulders – but this is a great resource for learning.