Originally Posted by
mconlonx
Nothing I wrote is contrary to what you are saying here...
True, but I felt that you left some out so I filled in the blanks.
Where you said "
head injury is sustained, chances are good that you would still have sustained head injury even if you were wearing a helmet." could be construed to mean that a helmet has poor chances to mitigate an injury. It seemed worthwhile to bring up some data showing that the helmet does have good chances to mitigate specific kinds of injury.
Your statement may be true if we consider traumatic brain injuries, severe concussions. But less true if we consider the less severe injuries, and not at all true if we consider scrapes, cuts and contusions.