Search results
Results from the WOW.Com Content Network
Freediving blackout, breath-hold blackout, [1] or apnea blackout is a class of hypoxic blackout, a loss of consciousness caused by cerebral hypoxia towards the end of a breath-hold (freedive or dynamic apnea) dive, when the swimmer does not necessarily experience an urgent need to breathe and has no other obvious medical condition that might have caused it.
Blackout can occur during ascent from a deep freedive or immediately after surfacing. This is due to a relatively rapidly lowered oxygen partial pressure caused by a reduction in ambient pressure after much of the available arterial oxygen has been used up at the higher partial pressures induced by depth, leaving the diver in a state of latent hypoxia, with actual cerebral hypoxia inevitable ...
Divers and swimmers who blackout or grey out underwater during a dive will usually drown unless rescued and resuscitated within a short time. [22] Freediving blackout has a high fatality rate, and mostly involves males younger than 40 years, but is generally avoidable. Risk cannot be quantified, but is clearly increased by any level of ...
Deep water blackout may refer to: Freediving blackout of ascent in which loss of consciousness occurs on ascent following a deep breath-hold dive Loss of consciousness associated with extreme nitrogen narcosis and possibly oxygen toxicity on Ultra deep air diving .
It has also been called depth intoxication, “narks,” and rapture of the deep. It can cause a decrease in the diver's ability to make judgements or calculations. It can also decrease motor skills, and worsen performance in tasks requiring manual dexterity. [10] As depth increases, so does the pressure and hence the severity of the narcosis.
For premium support please call: 800-290-4726 more ways to reach us
Winter Storm Elliot caused rolling blackouts in TN. TVA has made strategic upgrades to prepare for extreme winter weather. Here's how you can prep.
National Grid has warned that there could be blackouts this winter if gas power plants are not able to keep running due to the energy crisis. The electricity systems operator said it is still ...