The injury rates (IE need a doctor) of SCA fighting are less than professional Ping Pong and have been that way for 45 odd years (according to the insurance company).
In 11 years in armour I've gotten: Some Sciatic Nerve damage, 2 concussions (no loss of consciousness), one temp damaged shoulder nerve, and many bruises, welts and contusions.
In one year of HEMA: A broken knuckle, a separated rib, and 4 partially dislocated ribs.
In 7 yrs of TKD padded sparring: 1 partly broken shin, 3 concussions (1 knocked me out), 1 dislocated toe, 4 sprained ankles, 1 sprained wrist, and perhaps a hairline broken finger.
In 27 years of SCA fighting my mom has been concussed a few times, and bruised alot, but her 2 worst ones are when she stepped in a gopher hole and broke her ankle, and when she, as a lefty, didn't wear sufficient forearm protection and got her arm broken (to this day she admits fault as she had been warned it could happen).
As you know, in a full speed & full contact sport shite can happen. As for pissing blood, well, that shouldn't happen if the individual wore proper kidney protection (and has never happened to anyone I know), but it does. Sometimes armour fails, the shot comes in funky, the guy's protection actually WASN'T What he claimed, ETC, but it has never happened to anyone I know and I come from perhaps 'the' hardest hitting Kingdom in the known world.
As for the power well... If I swung my tourney sword to your unprotected head at regular force levels I could easily see your death as a result. HOWEVER, I have taken a broadsword shot to the ribs just above my curiass and with nothing but my shirt in the way and had only a big bruise to show for it along with a lack of breath.
I can also say that in 45+ years the SCA has never had a death from this stuff which is better than PeeWee Football (scary no?). Also there is a derogatory term for folks in the SCA who wear just the minimums here in the West: Pad-Boy.
As to specific injury rates.... mebe the Kingdom Chiurgeon would know? Chirurgeon@westkingdom.org
Got's more? I am still sick.
-Ivan
Who can put his fist through 2 pine boards and his elbow through 5, and thus is listed as lethal twards shelving.