Without wanting to diss someone else's research, it's clearly complete and utter ball locks?

I presume it means that out of common injuries associated with the professional game 26.5% are dislocated shoulders.

As in people's perception of common injuries and not actual numbers of injuries. Dislocated shoulders are pretty rare in SL. (About one per team per season?)

Actual injuries not perception. The research only took place from March to June, there were obviously more shoulder injuries during that time than other injuries. Also you would expect minor injuries to be more occuring than major ones.

Ive been playing for 11 years now and ive done 4 of the 5 injuries listed in the top 5.