WayHome
Posts: 237
Joined: 8/4/2004 Status: offline
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quote:
ORIGINAL: temptation asphyxation is far less of a danger, than cutting off the circulation to the brain. thats why i worry when people do things like rope/cord around the neck etc.. Actually, directly cutting off blood supply to the brain is generally less dangerous than true asphyxiation. When you cut off oxygen supply to the brain for long enough, you generally pass out. At that point play stops (Hopefully!) and the person is left with oxygenated blood everywhere but the head. Because the heart and other organs still have oxygen, the unconscious person still has blood flow (the heart doesn't stop) and breathing and the brain gets oxygen pretty quickly and the individual regains consciousness. I have been to a judo class where all 7 members of the class had this done to them at least once in the same night. That class was unusual but "choking" to the point of unconsciousness is not unusual in judo and injuries are rare. They learn a specific procedure to follow for "waking up" their opponents. When asphyxiation is done, the whole body loses oxygen at the same time. Thus, by the time you realize you have gone "too far" and the person passes out, their whole blood supply is deoxygenated and thus restoring oxygen to the brain and other organs can be a much trickier situation. At the very least, the lungs must operate to restore oxygen to the blood before the brain can begin to recover which makes for a much slower recovery and increased risk of brain damage. Worse, since the heart is also deprived during asphyxiation, the heart may give out before the brain and thus be the first sign one has gone "too far". Once the heart rhythm is interrupted, serious injury is likely. Death is a distinct possibility and damage to the heart muscle is likely. Carotid play (cutting off blood supply to the brain while maintaining the airway) is likely less dangerous than asphyxiation even when the vasovagal and cranial vessel stress factors are figured in. (Note: if you already have a history of CVA or transient eschemic event, then you should never do either form of play, even very lightly. Same if you are on anticoagulants for any reason.) Another thing to consider is that the carotids are pliable. In other words, if you collapse them then they will spring back as long as the heart works. The windpipe is not the same. Pressure to the cartilage of the larynx can cause damage to the cartilage such that removing pressure does not restore patency to the windpipe. In other words, it's possible to collapse the trachea through choking. For this reason, temptation is correct that ropes around the neck can be "more dangerous". Not because of blood supply to the brain, but because of potential damage to the windpipe from extreme pressure. Anyone engaging in that sort of play needs to be very aware of the amount of pressure they are applying. I will only apply pressure to the neck "by hand" so that I can precisely control the pressure. Leto
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