I don't usually train anyone - ever.
Anyway, today, one guy who works with me (we're tax/finance/litigation professionals) came to work out with me. To put it in perspective, we usually spend 12-14 hours a day at our desks. When we got to deadlifts, he started doing them all wrong. Once I corrected the errors (grinding his knees inward, rounded back, head looking at his navel, activating the lower back before the hip, etc.) he could only deadlift 75 pounds. He weighs 180.
His leg drive seems OK, he can leg press around his weight, or so. I really think his lower back, hams and glutes are weak.
I'm scared to actually train again with him... Is there a risk of injury for someone this weak? I mean he must have the weakest posterior chain I've ever seen. Im almost at a point where I feel like telling him to hit the "Good Morning" machine.
I tried to see what I was doing in 2009 when I started out ... and I was deadlifting 135.... for 8-10 reps. At the same weight (180). So I have no idea....