I am now 53 years old and have just passed 5 million throws in total. I have never had any shoulder or elbow problems in my life, no surgeries, no injuries, nothing! Could the reason be that I throw year round and do a lot of volume throwing: 10,000 per session at my peak ( insanity I know ). I wrote a blog ( see below ) about it giving some details. I am interested to know if any pitcher has ever tried this as part of their training programs - FYI: I am a two time Olympic javelin thrower and World Record Holder. So is what I do totally insane or is there something to it?