3 ms·

This looks somewhat similar in idea to the HANS head and neck support device used in motorsport but a lot smaller. It was invented about a decade before its wid

by exDM69 11y ago

This looks somewhat similar in idea to the HANS head and neck support device used in motorsport but a lot smaller. It was invented about a decade before its widespread, initially drivers thought it was clunky and restricting. It was adopted and officially mandated (in both, FIA and major American motorsports) after another preventable death from a basilar skull fracture caused by a rapid jerk on the head upon impact. Some professional athletes sacrifice their health for the entertainment of others (in injuries as well as unheatlhy training regime and doping). I'm all for making sports safer but as the audience we should also align our expectations to reduce the demand for dangerous feats in sports and entertainment.

darkmighty 11y ago
If you think about it, in principle, the best you could do is make a device that 1) controls the acceleration of the head assuming it will reach a certain displacement e.g. d=10cm with final velocity v=0 ) transfers the forces from the skull to elsewhere. So the absolute best protection you could get would be some kind of cage around the head not linked to the head at all -- maybe you couple this cage directly to a vest akin the HANS device you mentioned, and actuate a separate mechanism smoothing the head movement, with the largest radius possible around the head to provide the least maximum acceleration ( a_maxmin = initial velocity^2 / 2 * d ). Normal head movement could be completely unhindered. Now since this is a sport this could devolve into a bunch of people just bashing pieces of plastic into each other, which may or may not be desirable over the current situation; how much such a device would cost (not accessible to amateurs); and as others mentioned it's also possible their velocities will increase to compensate, maybe not changing the number of injuries at all.
grobbles 11y ago
The HANS device is to prevent head/neck damage by restricting movement (e.g. anti whiplash, which ironically can increase the chance of concussive type issues). This device, in contrast, is to artificially retain extra blood in the brain area, ostensibly to provide more of a blood cushion in the event of a high G event. So I'd say the ideas are extremely different. They both have almost at odds goals. A big part of the problem of football is probably the safety equipment itself -- the heavy helmets and paddings are exactly why players are smashing into each other at absurd speeds. If the players wore leather helmets it would probably yield a much safer game, however counter-intuitive that might be. Similarly, the extreme footwear on the field now is a big reason ACL/MCL injuries are on the rise -- they plant with such frictive force that normal athletic movements can endanger these weak links of human anatomy.

by exDM69 11y ago

darkmighty 11y ago

If you think about it, in principle, the best you could do is make a device that 1) controls the acceleration of the head assuming it will reach a certain displacement e.g. d=10cm with final velocity v=0 ) transfers the forces from the skull to elsewhere. So the absolute best protection you could get would be some kind of cage around the head not linked to the head at all -- maybe you couple this cage directly to a vest akin the HANS device you mentioned, and actuate a separate mechanism smoothing the head movement, with the largest radius possible around the head to provide the least maximum acceleration ( a_maxmin = initial velocity^2 / 2 * d ). Normal head movement could be completely unhindered. Now since this is a sport this could devolve into a bunch of people just bashing pieces of plastic into each other, which may or may not be desirable over the current situation; how much such a device would cost (not accessible to amateurs); and as others mentioned it's also possible their velocities will increase to compensate, maybe not changing the number of injuries at all.

grobbles 11y ago

The HANS device is to prevent head/neck damage by restricting movement (e.g. anti whiplash, which ironically can increase the chance of concussive type issues). This device, in contrast, is to artificially retain extra blood in the brain area, ostensibly to provide more of a blood cushion in the event of a high G event. So I'd say the ideas are extremely different. They both have almost at odds goals. A big part of the problem of football is probably the safety equipment itself -- the heavy helmets and paddings are exactly why players are smashing into each other at absurd speeds. If the players wore leather helmets it would probably yield a much safer game, however counter-intuitive that might be. Similarly, the extreme footwear on the field now is a big reason ACL/MCL injuries are on the rise -- they plant with such frictive force that normal athletic movements can endanger these weak links of human anatomy.