NFLPA initiates investigation into concussion protocols after Tua injury

[SupDock]

Originally Posted by Baby Lee

Not saying it happened Sunday, but a sciatic nerve signal will buckle you momentarily. Doesn't even have to 'hurt' that much, just your body shutting muscle signals down for a moment to avoid putting weight on a compromised lower extremity.

Not all that different from the reflex twitch from a hammer tap to the patella.

Definitely. A peripheral nerve paresthesia could cause it. Orthostatic hypotension could cause it too. It was hot as hell during that game and players were probably dehydrated.

I think the issue is that it happened right after he hit his head on the ground.