Originally Posted by
Jeff Illingworth
Part of the reason your chest rises is because you never really get bent over all that much to begin with. You also start loosing more control over your knees as you get tired. This happens to me all the friggin' time. For the knees, I don't have any good cues for someone as far along as you are except you just have to really, really think about keeping them over your toes until you're halfway up. You should work to fix this, but I wouldn't get into that process this close to your meet. Work on that after the meet while you're moving lighter weights. What's helped some is pausing in the bottom with my knees where I want them for awhile and then coming back up with another brief pause about 1/3 of the way up. I can tell when I'm doing it right after not doing it right for awhile by how tired my hamstrings get keeping my knees in position.
Shoes with a heel help, too.