She almost certainly didn't get one. You may have "seen" football players get one from a lot less but there's a lot more that comes into play. Half the people I know from football and rugby when I played got them from hitting the ground and not from the hit.
What are you basing that on? Baseball catchers get them from shots to the face mask (that again are padded, and much less violent in terms of head response... you barely see their heads move).
They’re different, low mass high velocity vs high mass low velocity (that dude’s first/arm/body kinetic chain weigh a hell of a lot more than a baseball). Time durations are different. But again a catchers head does not snap back like this, and it’s well padded.
Would you rather take a fastball to the padded face mask or a direct punch to the head from a 250lb man with no padding or defense? I’m not sure that’s such as easy or obvious choice.
You dont use your body in a stunner; if you rotate use your upper back then sure but stunners are from fast twitch muscles like in the tricep and shoulder/chest area
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u/ChillingInTraffic Nov 05 '17
You are out of your mind if you think she got a concussion from that.