For the first time, the National High School Federation is requiring all states to adopt pitch count limits of some sort. There is not a national guideline, so some states are maxing out at 100 pitches per game, others at 125 and then there are also mandatory rest periods, which get longer with more pitches.
Doctor Nik Verma of Midwest Orthopedics at Rush in Chicago, is the White Sox team physician, he says it’s important to avoid overuse injuries, especially in high school:
(Verma) “It’s the volume of throwing, how fast they’re throwing. And it really is at this age where they get screened out for being at high risk for injury.”
USA Baseball’s current recommended guidelines, which allow for 25 pitches one day and 90 the very next, are still too high for many experts.
Full Article: High School Baseball’s Major Change