I just posted a statistical analysis on my site of at what age male shot putters threw their personal best. I looked at the top 100 all-time.
There were several interesting conclusions, but one was that Americans reached their peak much earlier than other throwers. I speculated that this could be due to lack of support for post-collegiate throwers (may stunt long-term development), training methods used, or any number of reasons (for example it could be the need to compete year-round, as opposed to other countries ability to better focus on one big meet, leaves less time for overall development). I was more focused on the numbers than the reasons. Any ideas?