Pardon me, but can you hand me my lumbar back. Bodybuilding Injuries

After being in the gym business for the past 17 years I have seen my share of lifters getting hurt. A majority of the injuries are shoulder related from bench pressing. Others include lower back spasms from deadlifting and squatting, torn biceps from a preacher curl and sore joints. I had a few injuries myself. I had a major one some years ago in my upper back/shoulder area. I was doing behind the neck shoulder presses and all of a sudden I heard a pop and then radiating pain. The next week I barely could bench an empty bar. It took months to recover from that uninviting setback. The next thing I asked myself is what caused this horrific injury and how to not let it happen again. I was training six days a week at the time and came to the conclusion I was drastically overtraining. I wasn