Just a thought. Do catchers get arm trouble? They throw the ball...

[kairos12]

9. That is right.

The action and force placed on the arm from moving from an elevated position is quite unnatural. That is one reason, as you noted, softball pitchers do not have the same problems and can pitch on consecutive days.

One thing I’ve noticed is classic drop and drive pitchers like Seaver, Ryan, and Clemens seem to have fewer arm problems. If you look at their motions their left knees are practically touching the ground when they release the ball. That seems to leave their arms on a flatter trajectory relative to mound height which might lead to less arm strain. Just my thoughts.