Does headshaking after a collision on the sports field indicate concussion? Researchers say yes
A new study says it is a common occurrence and could identify undiagnosed trauma.
In countless cartoons and choreographed TV wrestling, a thump to the head is inevitably followed by the victim performing a quick side-to-side recovery shake.
Now, US concussion and rehabilitation medicine researchers have noticed this involuntary action is common on the real-life sports field and suggest it could be a useful screening tool.
