The bar is too high, in the wrong position to start with.
And the reason your elbows are jutting back is because you're losing thoracic extension/dropping your chest. The elbow is the effect, not the cause.
Thanks for the link. That is what I was picturing, but I have a hard time imagining that causing the bar to roll up. In my limited experience, not having a good set grip causes an overall feeling of looseness, but not necessarily any bar movement. In contrast, when I have a well established grip it's noticeable immediately. The bar comes off the hooks easier and it feels tight as if the bar is welded to me, yet I have had the bar move with a well established grip.
Originally Posted by SBegetis
The bar is definitely not too high; I've had it looked at several times (including a Rip look at a seminar)...any lower is too low...
mlentzer: you are right; upon having this happen to me again tonight, I definitely felt the chest drop before the elbow move regardless of what I saw in the video. Cueing the elbows does not work well as a fix for me. I think it works well for trainees more flexible shoulders than man; however, in my case, the elbows point down in the low bar position. That's just how my shoulder/elbows work. They don't lift very high upon squeezing the upper back muscles.
Most of the time this bar roll thing bothers the crap out of me and then other times, I don't sweat it and just squat.
If the bar is rolling up, one thing you know for sure is that it is not too low. So lower the damn thing a little more and try it again.
I actually encountered this problem as well, and was thinking of how to fix it.
I thought about the elbows and chest cue myself, since I did notice a slight collapse of the chest when it happened to me, and will give it a try next workout.
I also think it used to happen to me because of a change in the bar's position during the set, i.e sometimes I finish a repetition violently, allowing the bar to jump a little on my back, thus creating a situation in which the bar lays a bit higher on my back than on the previous rep. Although I try to fix it in between the reps while standing with it on my back, it doesn't always turn out to be fixable, and I carry on with this wrong position during the remaining reps, and during those reps, the bar of course, tends to roll forward.
I agree that it is not too low...but disagree that I have it too high. You recommend lowering it more than this?
Originally Posted by Mark Rippetoe
(This picture is from November last year..I have worked my grip width in--at least a hand width on each side--since then.)
I'd sure try it, since it is the most obvious thing. What are your other options?