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Old 08-14-14, 03:52 PM
  #8499  
wphamilton
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Originally Posted by 350htrr View Post
I'm talking average falls where head hits pavement, probably around 90%, (made up number), you are talking about a much smaller % of falls that the helmet may increase injury instead of helping...
There are no data that I know of that demonstrate this increased risk. It's one thing to reason that there should be a certain amount of increased risk of rotational injury, but quite another to demonstrate that there really is one. Although this pops up from time to time, it remains to be seen that there are any percentage of falls where the helmet increases the injury.

We can imagine a scenario where a specific impact vector along with friction imparts greater torque with the helmet. We can imagine scenarios where rotational force is mitigated by the helmet. Until someone investigates what actually happens in real or simulated accidents it's all speculative.
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