I’m not interested in arguing if his head hit the floor, the consensus seems to be it did in some capacity. So let’s go with that. My original post was a reaction from seeing it in slow mo on TV, so I’ll admit that can be wrong.
I appreciate that
Let me ask you seriously then, can athletes who suffer falls like the one Hawkins took experience whiplash? It’s not the sort of thing a normal human would ever experience, so I’m not sure you can use generalizations to justify saying it’s impossible. Couldn’t the force of hitting the floor violently cause his neck to jerk violently, leading to a concussion or brain injury? Genuinely curious.
No problem. Bear with me through this initial stuff, of which you’re probably aware of a decent amount; it’s meant to lead to the answer of your question. The mechanics of brain injury is important to lay out so that my answer makes most sense. *
or you can skip ahead to the asterisk
I alluded to the mechanism of arresting/initiating inertia. The inertia of the brain is the core cause of a brain injury. The brain starts moving, and then the head abruptly stops; the brain however keeps moving because it’s essentially floating in liquid, encased by the skull. When the brain keeps moving, it eventually hits the inside of the skull; then often bounces back and hits the other inner surface. This impacts cause respective coup and contre-coup injuries; and, when severe enough, can cause a “stretching” of the nuronal connections about the brain called axonal shear injury, which typically implies a relatively severe injury.
Most concussions are associated with a forward/backward head motion (about the saggital plane) coming to an immediate arrest against an object.
Many concussions are associated with a still head, but an object traveling fast. This is more so related to the blunt force impact.
Plenty of concussions happen from a twisting type of movement with the same inertia principles; think about someone getting caught on the chin in boxing. There’s no actual skull trauma; but the spinning of the head and the strain on neurons deeper in the brain associated with wakefulness are strained, resulting in loss of consciousness.
So, thinking about the classic whiplash injury: someone stopped at a light in a car, hit from behind. The sudden forward movement of the skull is often what causes the most-associated symptom of neck pain (and this is why it’s called whiplash). The head will eventually come to a stop; and if the head was lurched fast/far enough forward, upon stopping and flinging back via a ricochet effect, that then causes the brain to impact the inside of the skull. That is how someone can suffer a brain injury
secondary to whiplash.
Now, thinking about how the inertia is arrested. In a whiplash, the head eventually stops; but the deceleration is nothing like impacting a stationary object such as a wall or a windshield or the floor. This is why truly severe brain injuries are not associated primarily with whiplash.
*Now as far as the specific action of falling, landing flat, and possibly getting whiplash without hitting one’s head on the floor. The neck range of motion is such that, when the torso is stationary, all healthy people have range of motion well past the shoulders. In order to somehow not hit one’s head on the floor, someone would in essence have to consciously apply inhuman strength/coordination with maintaining neck flexion, as they’re falling, to fight gravity so as to prevent the head shooting back past the shoulders to hit the floor. That would necessarily stop whatever forces would be required to cause a whiplash injury. Any kind of force that would in another plane of motion against gravity (such as being upright) cause whiplash would more clearly and logically cause someone to hit their head on the floor; and then that trauma becomes a more obvious and more severe mechanism of brain injury. That’s why I would say, to me, it seems nigh impossible for an athlete moving and falling and absorbing impact in the specific (but common) way we saw last night to have a true whiplash injury. They’ll either miraculously prevent the neck extension in the first place, resulting in no head impact and no significant brain injury at all; or they will fail, and the floor will stop their head motion much more suddenly than in a classic whiplash event.
@Doctor Hoop feel free to chime in