especially as a beginner, don't use a lifting belt until you hit that 85%-1Rm range..this will help bring your back strength along
Originally Posted by Shaolinkiwi
I'd agree with most comments posted. I used to get a pretty sore back on these as well. All that changed with 2 things:
1) Corrected Form
2) Lifting Belt - this was a freaking god send.
Before the belt I was limited to around 180lbs, now pulling 310 and improving.
Also work on your lower back with hyper extensions, supermans and good mornings.