Can anyone tell me where I am going wrong with this deadlifting? I am trying to do it correctly.
http://youtu.be/o4U_UuoVuPw[/quote]
Theres a few things bro.
#1. When you put the last rep down!!!! Make sure you put it down like a regular rep, and not roll your back like you did.
Other than that, try to keep your entire back straight (stiff) during the entire rep. It looked like your lower back wasn't tightened enough. it should be like a plank the entire time.
Drive the heels down, they looked light.