Here's another question. Do more injuries happen at home or on the road? If at home, could the new turf be an issue? If I recall, they changed the turf about the time the injury rate shot up.
I checked, and the new turf was installed in the summer of 2013. Thus it was in place for 2013-2015, but not for 2012, which was the year of the worst injuries. The new turf is an Astro-turf product, and is different than the more standard Field Turf. Is it as safe?
I do think that it would be interesting to compile a list of injuries by type, by where they happened, by who was being played (or whether it was in a practice), to see if a pattern emerges. I don't have enough data to make such a list though. You'd think someone, perhaps the athletic training staff, would have one.
I have designed a number of synthetic turf fields.
The "old" turf at O.U. was past its recomended "useful" life.
I was out at O.U. for a game a year or so before the turf was replaced.
The Maintiance Staff did a phenominal job of keeping the old turf "playable",but you could see it needed to be replaced.
I use "Field Turf" pretty much exclusively.
I have seen the specs for the turf used at O.U.
Also walked on the new turf a couple of times.
I've read a number of articles concerning the synthetic turf installed at O.U.In the interest of full disclosure,some of the information came from other synthetic turf manufacturers.
"AstroTurf" uses a differnt type of "mat" for the turf as well as a different sand/rubber "infill".
The "knocks" on the product are that the system is more prone to "snag" a cleat.
It also can get "slick" when its damp and/or cold.
I can't comment on the "cleat" issue,but I have seen unexpected "slips" in "dry" weather on that turf.