(AP) — The massive men ran from one station to the next, barely taking a second to catch their breath between rounds of sit-ups, push-ups and throwing weighted balls against a wall. The end of the session turned into a testosterone show, students watching from a perch above and shouts filling the room as the players took turns bending steel bars while squat lifting the equivalent of small cars. Yes, the participants were just as sweaty, their chests heaving and hearts pounding just as much, but the weights were far lighter, the pace much slower, the crowd nonexistent — and they didn't even have to go run 2,000 yards afterward, like the football players did. Think you can handle a college football offseason workout? When you're a middle-aged man who's been told you have the back of a 70-year-old man, will eventually need knee replacement surgery and sometimes injure yourself while sleeping, the specter of being pushed to the limit by a professional strength coach will cause some anxiety. [...] as we went through speed drills — stepping quickly in and out of a fabric ladder on the floor in various directions — did sit-ups and threw weighted balls against a wall, I found myself wondering where the defibrillator was. The double sets continued with different exercises, jogging from one station to the next to alternate one-armed flat bench with back extensions, chin-ups with dumbbell Romanian dead lifts, shoulder raises and bent-over rows. Through the speed drills, they looked more like running backs and receivers than linemen. Once they're done in the weight room, ASU's players go out to the practice bubble and run up to 2,500 yards, broken up into timed sessions.