COMMENTS FROM ANY MOTORCYCLE/BICYCLE HELMET WEARERS OR ANYONE WHO KNOWS SOMEONE WEARING A HELMET WHO SURVIVED A MOTORCYCLE/BICYCLE/SKI/SNOWBOARD CRASH AT +14 MPH?
I saw the statement below at www.thecni.org/reviews/11-1-p27-levy.htm
and found it extremely interesting that both motorcycle and bicycle helmets are lab tested only at about 14 mph. However, it seems to me that bicyclists and especially motorcyclists go much faster than 14 mph and seem to survive crashes while wearing helmets.
If this is true, some folks who wear ski helmets may be likely to survive crashes at speeds much higher than 14 mph.
What do you think? Do you have any anecdotal evidence from personal experiences with crashing on a bicycle/motorcycle/skis/snowboard at speeds greater than 14 mph while wearing a helmet and surviving or know anyone who has?
"A popular criticism of ski helmets is that they do not provide protection in collisions over 12 to 14 mph. This figure is often cited as a reason not to wear or endorse helmets. This figure comes from a laboratory test in which a helmet is secured to a metal test headform and dropped from a height to achieve a specified impact velocity onto a solid steel anvil.11 The reported impact speeds are misleading if interpreted literally, and helmets are felt to provide effective protection against brain injury at speeds beyond the test velocity. For example, motorcycle helmets are tested at flat anvil impacts of 13.4 mph, yet there is overwhelming clinical evidence that they provide substantial protection against brain injury at much higher speeds.15-17 Similarly, impact velocities specified for bicycle helmets range from 10 to 14 mph, yet again clinical experience clearly indicates significant protection in collisions at higher speeds. Thompson and Patterson found that bicycle helmets reduce the risk of head injury by 85%, brain injury by 88%, and severe brain injury by 75%, and that they are just as effective in collisions involving motor vehicles.18 Finally, the helmeted skiers and boarders in our series who made full recoveries despite major mechanisms, provide direct clinical evidence that ski helmets can afford protection in collisions exceeding 12 to 14 mph. Helmets may not prevent every injury, but in all the cases we have seen to date, they have mitigated potentially fatal or disabling head injuries into fully recoverable injuries."