Dunno if I'd use those words in the same context... The closest I came to was "impotent", but that could be insensitive to a much larger population than the disabled. :p

Also, here's what I'd like to do (and I know it's impossible): Take the disabled people who are genuinely offended by "lame" and compare them next to the population of disabled people who really don't care. Then, because their opinion is also important, ask the group that doesn't care what they feel about the ones that do. That would all be very interesting data.