Did they show them the needles? 70s Steelers worked out near where I grew up. Legendary steroid use during that era.Back in the 70s there was a gym in Altoona PA (Jake's IIRC) that had a ton of guys benching over 500 pounds. Penn State football had a group in the gym for several days measuring angles of different benches, talking to guys about different routines searching for anything on the subject of strength training that they did not know themselves.