A medical diagnosis ended Zach Orr’s career. Then it led to his calling.

If you wake up early enough to get to the gym with Zach Orr — few people do — you’ll see the 32-year-old doesn’t lift like a former NFL linebacker. He does a lot of stretches. Many of his lifts aren’t heavy, an anomaly in a weight room dominated by stacking plates for Olympic-style lifts. But, even though it’s apparent Orr is in good shape, you won’t see him doing barbell squats.