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Old 04-01-2015, 08:12 PM
Mark in Idaho Mark in Idaho is offline
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Mark in Idaho Mark in Idaho is offline
Legendary
 
Join Date: Feb 2009
Location: Somewhere near here
Posts: 11,427
15 yr Member
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No, there is not enough force at either end of the jerk to cause a concussion. If you jerked your head into something, you may get a concussion. But, shaking your head violently repeatedly could cause an injury as the brain struggles to regulate fluid/blood pressure, etc.

A neck injury could cause symptoms that overlap concussion symptoms.

This does not mean that head jerks would not cause concussion symptoms to relapse. Some of us have become very sensitive to quick head movements after a concussion and can get a return of symptoms, usually short term.
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