From the Edmonton 2007 Charlie says "If you do not have the testosterone present and you train aggressively, GH has to take over the role of testosterone and it has to come from somewhere… the end result it limits growth. An example he gives is compare youth gymnast of non-gymnast background parents, they are usually alot smaller.
He produced one slide which came with the Edmonton video and produced for schools with recommendations for the support requirements piece (teachers, gyms, equipment), but also provides basic recommendations for distances and exercises for youth that I reference regularly.
I just had this conversation, a bit of an argument with a soccer mom whose daughter plays all year round and she was poking my wife and me as to why our daughter was the next few months off of team sports… she did not listen to my reasoning.
Charlie