My son's team had 10 players go through a fairly rigorous off-season pitching program with a lot ofmound time and max effort throwing. Two of the 10 now have L4-L5 stress fractures and are missing the summer season.
Is there a fundamental flaw in the mechanics that overloads the spine? As a coach, is there something particular to look for (like arm lag or landing on the heel) that would foretell stress on the back? What about rehab and making sure it does not reoccur?
This seems to be a fairly common injury in some of the high-torque kids, ones that have great arms for their size. I could not find much of a comprehensive discussion about this.
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