If there is a “secret” to super strength it’s hard, intense leg work. Here’s eventual 1971 Mr. America Casey Viator getting in a quick squat workout at the infamous quonset hut in Deland, Florida in the early days of Nautilus. There’s 535 lbs. on the bar — not bad for a “training weight.”

The Mr. America contest was still a few months out, and when the day came, Casey won in the most dominating fashion possible taking not only the overall title, but also five out of six of the subdivision: Best Chest, Best Legs, Best Arms, Best Back, and Most Muscular. The only subdivision that Casey didn’t win was “Best Abs” which went to Chuck Amato.