Rabu, 26 Februari 2014

Possible Head Injury.....?




missee


My husband was riding his bicycle and he fell off. No he was not wearing a helmet (dumb, I know.) He hit his head on the concrete but he did not pass out and he is not dizzy. He has a headache of course. My question is what should I be watching for and should we go to the e.r. right away.


Answer
It depends how hard he hit it. If he starts feeling sleepy, dizzy, nauseous or anything I would go to the E.R. immediately. For now, just keep an eye on him and for the next few hours. I know when we used to hit our heads playing rugby, they used to wake us up every hour at night to make sure we were okay. If anything changes then go.

Will wearing a bike helmet really improve my survivorabilty?




Pubes


Or is it just hype spread by makers of bicycle helmets.


Answer
Short answer:

wearing a bicycle helmet in everyday riding/commuting will slightly reduce the risk of an injury on the top of your head while simultaneously increasing the risk of an injury to the front of your head (face/chin) and neck (spinal column). Injuries to the brain (rotational trauma) are likely to increase, too - but in the usual studies, brain injuries are only regarded after the head has been cracked open (or they prove to be fatal). The absolute numbers for these shifts are on the boundary of statistical evidence - cycling per se is pretty safe, so there are simply too few (evaluated) accidents with head injuries to gather sufficient data for a reliable analysis.

On about the same level of statistical relevance, wearing a cycling helmet in everyday riding also seems to increase the probability of suffering an accident, most probably through risk compensation, both from the cyclist and their environment.

Regarding survivability: taking both of the above effects into account, for commuting cyclists, the net effect is zero within statistical limits. For competitive cyclist, the question doesn't arise since race rules will usually prohibit you from participating if you don't wear a helmet.

Long answer: read the studies for yourself, e.g. starting at http://www.cyclehelmets.org/




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