Sophie was playing volleyball. as she was about to spike the ball over the net,

Cerebral Concussion.

Explanation:

Brain concussion is a lesion that affects all areas of the brain and temporarily changes its normal functions, such as memory, concentration or balance, for example.  Generally, brain concussion is more often after severe trauma, such as traffic accidents, but it can also occur due to falls or head blows due to contact sports. In this way, even light strokes to the head can cause minor brain concussion.

    However, all brain concussions cause minor brain damage, so if they happen repeatedly or are very severe, they can lead to the development of diseases such as epilepsy or memory loss. Cerebral concussion may also be accompanied by a bruise, which is a more serious injury that can cause bleeding and swelling of the brain, especially after serious traffic accidents or falls higher than the height itself.

researcher bias.

Explanation: