Though one’s back necessarily rounds as one approaches one’s 1RM max in the deadlift, I don’t think recreational lifters (read: folks who aren’t competitive powerlifters) should ever go so heavy that it happens to them.
First things first, great lift. If I could offer one bit of advice, it would be to try and drop your ass a bit more right before ripping the bar off of the ground (or in this case, rack). This will give you a bit more leg/glute drive out of the bottom, and might also help prevent premature rounding of your lower back.
Although I don’t fully agree with what RETARD and KnightRT have said, you did round a bit too early for my liking. I agree with you, Goldberg, OGuard and others in that you WILL inevitably round a bit, but I would try not to hit that rounded position until the bar is a bit higher.
Take it from someone that rounds way too early himself from time to time: The more you can minimize the “totally rounded” time the better; you’ll finish a lot more pulls if you can do this. At least I do.
Keep up the great work and keep pulling strong…you’re gonna have a helluva pull in your first meet…especially once you can get that form down perfect.
Goldberg, I’m no deadlift master but Landon’s form looked just fine to me. I agree with you. KnightR- I don’t see what you are talking about with the leg firing and then the back baring most of the weight. I see him planting and when his legs fire his back doesn’t move, as far as the arch goes, for the entire way up. It is arched but it is not compressing. Two different things dude. Besides if arching was entirely bad how the hell would you strengthen the upper thoracic erector spinae? Unless you want to do only isometric holds. It is risky I won’t argue that but strong man, olympic lifting, and power lifting are all very risky sports. Lastly as far as compression, basketball players probably experiance more direct long term compression than power lifters do. This was a one rep power move, I doubt Landon did these all day long.