Many of us may remember watching Arnold training his back with seated cable rows  during that scene in Pumping Iron and thinking “Oh my God! He’s gonna break his spine with form like that!” Actually, half of us probably had that reaction.

Those that watched in horror as Arnold rounded his spine were the “smart and educated” lifters. I know this because I was one. We were taught by several gurus about how dangerous this type of thing was so we just laughed as the greatest bodybuilder of all time ignorantly [...]