Reluctantgymmom:
My first thought when you say lots of injuries and military boot camp style conditioning is that maybe it’s due to incorrect form (think about knee position during squats and jumps) and repetitive movement. A gymnast might be able to do X perfect pushups, Y more so-so, and Z more crappy ones. Make any incorrect movement enough times, and your body is going to tell you about it. I remember a weight coach in college getting onto me about bouncing at the bottom of my pistol squat. It was my way of making it easier to do when I was fatigued, but man that was not good for my knee, and I’m glad he called me out on it.