Dustin is pretty much spot on.

Originally Posted by
Dustin C.
I've read a lot of different studies and books seems like all the "experts" even disagree :-/
Isn't that mainly talking about warming up?
Yes. It's talking about when to use the different varieties of stretches. If you are warming up for competition, static stretches that tear your muscles down may not be the smartest choice, if you want to preform at your maximum ability. Things like high knees and other dynamic stretches will warm your muscles up without damaging them.
Static stretches still are very useful for gaining and maintaining flexibility. They should be done at the proper time however, not right before you want to preform at your best.