A few years ago I was observing a pitching clinic my son attended that was put on by Tom House. He said something I've never heard before or since, and so want to get the reaction of those on this board who know a lot about this stuff.
He said that kids can throw as much as they want on flat ground, with very little risk of ever hurting their arms.
But pitching from a mound puts about 30% more stress on the arm since you land downhill. That is why he recommended a max of 75 pitches from a mound for kids.
Do people here agree that kids won't hurt their arms by throwing on flat ground? I think he said they will get tired and quit before they will hurt anything.
Original Post