Has there been any research comparing severity of leg injuries playing on artificial turf versus a natural turf? Maybe its me being old school but it seems like leg injuries tend to be more severe playing on artificial.
I think there are lots of factors that could be a cause. It would be tough to pin that on turf. I think it's nothing more than players being faster and stronger. They create more force when they hit each other. It could also be the change in rules that make players avoid the head. I'm just spouting off now, but do medical advancements lead to more accurate diagnoses than we had even just a generation ago?
I think turf is more forgiving. Your feet come free easier than they do on grass or in mud, which leads to less torque of the knees & ankles. Plus, it's uniform all over. There are no mounds or holes on turf. It's tough to maintain a great grass field at this level.