‘Hook breathing’ is typically a method used by freedivers to fight blackouts of water bodies and additional harmful oxygen starvation consequences. It is a well-known fact that if you are a freediver, then you are in a relentless battle at odds with time and draining amounts of oxygen. A freediver might get exhausted of oxygen quite fast and they can experience unconsciousness while in the water.
Understanding hook breathing?
Generally, hook breathing is a specific approach applied by the freedivers for recovery- breathing while resurfacing right after their dives. It helps transfer more oxygen into the bloodstream , much faster than the usual breathing technique. This in turn increases the air pressure inside the lungs and the blood pressure as well. Although it can be extremely efficient in avoiding blackouts in surface water.
How does it Work?
The basic idea behind the method of hook breathing is that the freediver partly breathes out some of the air of his lungs while resurfacing from a breath-hold dive. Next keep inhaling air like you would usually do, but make sure that you use your diaphragm, and muscles to keep it in your lungs while trying to exert force downwards. The airflow inside the lungs is greatly enhanced by the endurance of force.
The extra air pressure then forces the oxygen towards your bloodstream and pumps oxygen rich air into the brain at a much faster speed as compared to the regular breathing. This fast oxygen flows to the brain and prevents further unconsciousness and collapsing in the water.
Steps to follow while freediving:
1. Breathe out around 40 percent-50 percent of the air via lungs after your resurface. Try out different levels to know which suits you best.
2. Fill up the upper section of your lungs with air.
3. Hold that breath. When following step 4 mentioned next, you can hold your breath for 1 to 3 seconds.
4. Place your lungs under pressure. Very little force is applied on your lungs when holding your breath. You must utilize your belly, ribs, and diaphragm for around 1 to 3 seconds to perform.
5. After 1- 3 seconds, breathe out the air out of the lungs.
6. Redo steps 2 to 5
7. Recommence the usual breathing rates.
8. Indicate surface rules and rest.