Adarq.org

My bad...i've never seen or heard of bumper plates before...and ya he does look like a beginner...
As for the rounding of the back...he is doing it and like I said it is instinctively kind of hard to round your back that much with a bar on your shoulders...but he is still doing it!

beginner with lifting shoes?

I guess you will have a hard time lifting in his gym with bad shoes. I have seen him encourage rank novices in videos to get some good pair of lifting shoes right away. Makes sense to me.

My bad...i've never seen or heard of bumper plates before...and ya he does look like a beginner...
As for the rounding of the back...he is doing it and like I said it is instinctively kind of hard to round your back that much with a bar on your shoulders...but he is still doing it!

The rounded back thing will go away with some practice and a solidified technical execution. He is just learning the proper movement in this video. I have observed the same thing with actually the majority of the few people I coached the exercise to. Only few have good control over their lumbar spine initially. But this sorts itself out rather quickly once some key points of technique are learned and the focus can shift more to keeping everything tight around the torso. The guy in the video did not have that stuff down yet.