We’ve all felt that umpiring (and obviously playing) on turf is harder on our joints that old-school natural grass, but now you can point to a study to prove it. A former college football wide receiver and now orthopedic surgeon is studying the comparative strain put on knee joints by different shoes and surfaces and found that Astroturf puts 80% more strain on the knee than grass, and “next-gen surfaces” are 45% more stressful.
We can only hope that further research will be taken into account by the “next-gen” surface manufacturers in making their products safer for the athletes - players and officials both - who perform on them.
(Read More - Wired.com - “Cadaver Legs Give New Insights Into Athletes’ Ligament Tears”)