Kids never used to get TJS and now they are. It’s overuse.
https://pubmed.ncbi.nlm.nih.gov/16452269/
In kids, yes. There have been no studies of adult pitchers. Which is the question.
Also, that study doesnt control for velocity
These pitchers were more frequently starting pitchers, pitched in more showcases, pitched with higher velocity, and pitched more often with arm pain and fatigue.
So was it pitching more or pitching harder? Or both?