from Amazon
Tuesday, April 20, 2010
Stress, not fastball speed, is what it costs you to pitch from the stretch
That would seem to me to be what the data shows, as the pitcher is throwing with the same speed, but with less leg power, and I presume, that must mean more stress from his arm to compensate. That must be what Smoltz was talking about when he said there was more stress on the pitcher’s arm in runner situations: they’re doing the same with less.
