Alvin Kamara....Baldy again

I see a chiropractor that travels with Panthers players from time to time. He said that the majority of the Panthers players say that AK is the hardest player to bring down. He asked them to elaborate why and they all had the same response “once we hit him, it feels (to them) that his legs go numb, so they think he is going down, but he actually keeps running”. They can’t seem to explain how that is. I thought that was interesting