I think 1RM can be done safely if properly warmed up and spotted. In fact, one of my labs in university included a 1RM bench test.
1RM Bench press has been shown in the literature to be a very good approximation of overall upper body strength. It's not perfect, and you're right if someone trains only for bench it won't be valid.
My 1RM was around 215 last year when I was close to my peak, but I'm sure it's down quite a bit now. I weighed about 155lbs, 6'.
Originally posted by richardchan2002
Doing 1 rep max is how you get injured...
I'm 160 and I can do two plates (2 45's on each side - 225lb) but I don't think it translates into real strength. I think people should be wary of using the amount of weight as a benchmark. I used to go into the gym and shoot for high weights on the common exercises like bench press, curls, etc. But if you don't exercise all your muscles evenly, you're not getting any benefit from working out. You're only strong for that one motion, and it can cause problems with your stabilizer muscles and other joints... My $0.02