If I am reading this correctly, it is saying that concussion like symptoms occur in the general public, and that heavy exercise can exacerbate the problem..hmmm.. Abstract Concussion is a common injury in collision sports and is evidenced by a variety of signs and symptoms. The recording of neurological symptoms is an important component of screening for a concussion and in return-to-play decisions
Read this article:
Concussion and the lower limb and as a public health issue