deadlift form check

[CHARTLEY]

Mark, I am the one who emailed about having lower back pain all the time and whom you referred to this site.
I spent a long time reviewing videos, diagrams, and reading up on deadlifting and deadlift form since emailing you. I believe I have fixed my form up a bit. I think before, I was squatting the weight up. But I am confused as I see some videos of some with a strong deadlift and their legs go parallel to the floor and they lift in the same way I previously did before this video. I tried to not put my ass so far down to the ground and not have my legs go parallel. Let me know what you think.

Note: If this video does not yet work, it is due to youtube having not approved it yet.

http://www.youtube.com/v/evhjPNB8Gr0

[Mark Rippetoe]

Wow. Low back hurts? Looking at this video, do you see anything that might account for that? Like perhaps a complete failure to maintain lumbar extension? It's not a matter of shoulder position or back angle -- you just can't rely completely on ligament strength to protect your lumbar discs, you actually have to keep your back flat with your back muscles. Or at least try to.