I beg to differ. Running on a treadmill for 30 minutes is 100X more physical than sprinting 60 feet 4 times in 30 minutes (at least it requires more physical activity) but the latter will dramatically increase your chance of injury and thus provide for much wear an tear.
I think people who are saying that baseball isn't that physically taxing don't understand human physiology that much. Something being physically challenging to do, and something being physically taxing on your body ARE NOT analogous. A lot of the motions that are functional in baseball are very unnatural movements. The Act of swinging a baseball bat, pitching a pitch, and going from 0-60 in a split second are very taxing on the body.
Also, someone who sits down and only has to get up to bat is probably less warmed up sitting on the bench, which if anything puts someone at a much larger risk of suffering an acute injury.
People who are looking at this, are looking at it from the wrong angle. I worked as a trainer, I was 30 credits shy of a degree in health and human performance before I switched to a business degree, I've worked in gyms my whole life and I've worked with a PT and professional athletes as well.....I know what I'm talking about.
P.S....I come in peace!!! not trying to sound stand offish.