I suspect a broken/crushed spine would be the least of your worries. Lying on the ground maximizes the deceleration of your organs, including your brain. That squishy stuff is going to slosh around like jelly in a blender.
I suspect a broken/crushed spine would be the least of your worries. Lying on the ground maximizes the deceleration of your organs, including your brain. That squishy stuff is going to slosh around like jelly in a blender.