Interesting, I looked it up, and apparently there is more disagreement on this than I was aware of.
If you read in depth on the subject, most people are saying it can fall pretty fast: controlling the bar seems to be mostly directed at making sure it takes a straight line down and doesn't hit your knees.
However, some people are saying that they lower it slower to get more work per rep.
All I will say is that my personal experience is that trying to over-control the lower has caused issues for me, and a few other people I've known who deadlifted, and these were always fixed by the cue, "Just keep your hands on it and otherwise let it drop."
And the flipside is definitely clear: if you watch any high-level deadlift competitions, tons of competitors will just completely let go of the bar, and I'm not aware of any injuries caused by doing this.
That said, I'd love to see actual data, as the only information I have found here (including my own) is just appeals to authority.
If you read in depth on the subject, most people are saying it can fall pretty fast: controlling the bar seems to be mostly directed at making sure it takes a straight line down and doesn't hit your knees.
However, some people are saying that they lower it slower to get more work per rep.
All I will say is that my personal experience is that trying to over-control the lower has caused issues for me, and a few other people I've known who deadlifted, and these were always fixed by the cue, "Just keep your hands on it and otherwise let it drop."
And the flipside is definitely clear: if you watch any high-level deadlift competitions, tons of competitors will just completely let go of the bar, and I'm not aware of any injuries caused by doing this.
That said, I'd love to see actual data, as the only information I have found here (including my own) is just appeals to authority.