What is Deep Freediving?

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what-is-deep-freediving?

While freediving, outlined as “diving underwater on a breath-reduction,” has been spherical for hundreds of years as a vogue for hunting and gathering, humans didn’t launch going deep until about 1949.

Scientists theorized that the encircling tension would crush humans at a depth of 30m (98ft). Nonetheless, Raimondo Bucher, a Hungarian-born Italian Air Drive captain, stricken all americans by diving to that very depth. That year became the initiating of trendy freediving, and freedivers began organizing freediving competitions within the following decades and continued pushing the bounds of what’s thought to be “deep.”

Nonetheless, there just isn’t this kind of thing as a accurate field definition for deep freediving – it largely is dependent for your standpoint.

As soon as you happen to have got in no plot freedived earlier than, diving to a newbie freediving route requirement (for companies such as Molchanovs and AIDA) to 12m (39ft) might maybe per chance well appear deep. As soon as you happen to might maybe per chance well very properly be already a freediver, you will need in tips the Level 2 requirement of 24m (79ft) daunting. For more standpoint, instructor requirements for prime freediving companies require candidates to dive to 40m (131ft) with bifins.

Nonetheless while you happen to leer at nationwide and world records, they are generally 2-thrice deeper than fashioned freediving instructor requirements. Try the records below by self-discipline for some standpoint on the depths prime freedivers have reached.

Deep freediving world records by self-discipline

A Freediving competition. Photo by Daan Verhoeven.
A freediver ascending through CWT at a freediving opponents. Photograph by Daan Verhoeven.

Constant Weight (CWT)

Constant Weight, or CWT, involves a freediver the explain of bifins or a monofin (the records listed below were field with monofins) to propel themselves down a diving line and reduction up. Freedivers who explain monofins must be proficient within the dolphin kicking methodology.

Males

  • Alexey Molchanov (RUS) – 131m / 430ft
  • David Mullins (NZL) and Guillaume Néry (FRA) – 126m (413ft)
  • Herbert Nitsch (AUT) – 124m (407ft)

Girls

  • Alenka Artnik (SVN) – 122m (400ft)
  • Alessia Zecchini (ITA) – 117m (384ft)
  • Hanako Hirose (JPN) – 106m (348ft)

Constant Weight with Bi-Fins (CWTB)

Constant Weight with Bifins, or CWTB, is a moderately unique self-discipline the effect freedivers can handiest explain bifins to propel themselves down and up a line. To boot, freedivers can handiest explain the flutter-kicking methodology.

Males

  • Alexey Molchanov (RUS)  – 118m (387ft)
  • Arnaud Jerald (FRA) – 117m (384ft)
  • Abdelatif Alouach (FRA) – 111m (364ft)

Girls

  • Alenka Artnik (SVN) – 106m (348ft)
  • Alessia Zecchini (ITA) – 105m (344ft)
  • Marianna Gillespie (FRA) – 97m (318ft)

Free Immersion (FIM)

Free Immersion, or FIM, aspects freedivers who pull themselves down and up the line. They attain now not wear any fins at all. This self-discipline is engaging on myth of dive times are longer than CWT and CWTB.

Males

  • Alexey Molchanov (RUS)  – 126m (413ft)
  • William Trubridge (NZL) – 124m (407ft)
  • Miguel Lozano (ESP) – 122m (400ft)

Girls

  • Alessia Zecchini (ITA) – 101m (331ft)
  • Sayuri Kinoshita (JPN) – 97m (318ft)
  • Jeanine Grasmeijer (NLD) – 92m (302ft)
Dean Chaouche opponents in his deep freediving self-discipline - Constant Weight No Fins (CNF). Photograph by <a href=Daan Verhoeven.» data-lazy- data-lazy-src=»https://www.deeperblue.com/wp-roar material/uploads/2017/05/dean-09715-700×467.jpg» data-lazy- peak=»467″ src=»data:image/svg+xml,%3Csvg%20xmlns=’http://www.w3.org/2000/svg’%20viewBox=’0%200%20700%20467’%3E%3C/svg%3E» width=»700″>
Dean Chaouche opponents in his deep freediving self-discipline – Constant Weight No Fins (CNF). Photograph by Daan Verhoeven.

Constant Weight No Fins (CNF)

Constant Weight No Fins, or CNF, is the most engaging self-discipline of all, because it requires freedivers to explain handiest their fingers and legs (no fins are veteran) to swim down and up the line in a modified breaststroke vogue of methodology. As a result, dive times are very long, and lactic acid within the fingers and legs builds up snappy, constructing a range of fatigue.

Males

  • William Trubridge (NZL) – 102m (335ft)
  • Alexey Molchanov (RUS) – 96m (315ft)
  • Morgan Bourc’His (FRA) and Petar Klovar (HRV) – 91m (299ft)

Girls

  • Alessia Zecchini (ITA) – 74m (243ft)
  • Sayuri Kinoshita (JPN) – 72m (236ft)
  • Natalia Molchanova (RUS) – 71m (233ft)

That you just might maybe per chance well accept as true with of risks of deep freediving

If we leer at a freediving instructor route because the launch of what’s thought to be “deep freediving,” we will be able to have in tips dives deeper than 40m (131ft) because the stop of leisure freediving and the launch of deep freediving. While any sport has risks and that you might maybe per chance well remember accidents, freediving is all about dead development, affirming rest, and wretchedness reduction.

The following risks attain now not “include the territory,” nonetheless they might maybe well happen for a multitude of reasons, such as dashing progress, diving while ailing, miserable stipulations, and so forth. It would unruffled be noted that a complete lot of freedivers err on the facet of caution and steer clear of these accidents altogether as they intention for deeper depths.

Loss of Motor Adjust (LMC)

A loss of motor management, or LMC, occurs at the skin when freedivers attain dangerously low oxygen stages. It causes their muscle groups to involuntarily spasm and jerk, nonetheless after they launch respiratory and attain typical oxygen stages, the spasms stop. If freedivers attain now not breathe, their oxygen stages proceed losing, main to a blackout. LMCs are thought to be a warning stamp to exchange the capability you dive.

Blackout (BO)

A blackout, or BO, is a loss of consciousness on account of extremely low oxygen stages. Blackouts are likely to happen on the ascent between 10m (33ft) and the skin on account of the necessary drop in partial tension. Nonetheless, they are able to moreover happen at deeper depths or on the skin if a freediver doesn’t create honest correct recovery respiratory to restore oxygen stages. Blackouts are now not ceaselessly ever fatal; on the opposite hand, freedivers protect them critically and check out to steer clear of them at all costs.

Eardrum perforation/break

Perforated eardrum.
Perforated eardrum.

Equalizing the eardrums plays a with out a doubt broad function in freediving, and as you trail deeper, equalization will get more challenging. Freedivers generally face boundaries with advanced equalization tactics, and if they proceed pushing to trail deeper even supposing equalization is failing, a gap or fling seems within the skinny tissue between the outer ear and heart ear. This requires staying dry for some time to steer clear of an infection and enable the smash to heal.

Pulmonary barotrauma (lung squeeze)

Pulmonary barotrauma, moreover known within the freediving community as a lung squeeze, occurs when smash or smash is prompted to the lungs on account of the surrounding tension at depth. This might maybe per chance well happen if a freediver doesn’t have thoracic or diaphragmatic flexibility, is now not entirely relaxed, or makes surprising movements at deeper depths (even supposing lung squeezes can happen at shallower depths if a freediver in actuality lacks flexibility), which places stress on compressed lungs. This excessive smash generally requires broad time spent on land recovering.

Lung overexpansion

Athletes who pack their lungs (gulping or sipping more air into already entirely-inflated lungs) can wretchedness a lung overexpansion smash on the ascent (on the opposite hand, right here is abnormal). When freedivers dive to deep depths, their lungs compress, and blood shifts to the chest to accumulate the role left by the compressed lungs.

It is a pure reflex in mammals, nonetheless as freedivers who’ve packed their lungs ascend, their lungs might maybe per chance well trail in re-enlargement within the last few meters. This can stop within the lungs overexpanding, so you might maybe per chance well peek freediving athletes exhaling the last few meters of their dives.

Lung packing is a highly advanced methodology that ought to handiest be practiced by skilled deep freedivers below the steerage of a expert coach, if practiced at all. Lung packing ought to unruffled now not even be thought to be an option until a freediver reaches depths deeper than 60m (197ft), and even then, there are deep freedivers that attain now not pack.

Decompression Illness

Decompression sickness, or DCS, is a accurate wretchedness in scuba diving, nonetheless now not so much in freediving. When scuba divers inhale pressurized air (21% oxygen and 78% nitrogen), nitrogen stays within the physique, and scuba divers continuously exhale slowly while ascending to launch excess nitrogen. If nitrogen is now not offloaded, it forms bubbles that can block runt blood vessels and aim excessive consequences.

While freedivers attain now not inhale pressurized air at depth, the 78% of the nitrogen that makes up the ambiance is in their final breath earlier than they fall. This nitrogen unruffled pressurizes at depth, nonetheless it is amazingly runt in contrast to scuba divers, and freedivers generally exhale all of the surplus nitrogen at the skin.

Nonetheless, performing multiple deep dives in one day might maybe per chance well aim nitrogen to amass sooner than launched from the physique. A typical rule of thumb freedivers follow is to restrict dives that are 60m+ (197ft) to handiest one per day.

How will you launch freediving deep?

Two freedivers ascending together.
Two freedivers ascending together.

If freediving sounds admire a sport that you in truth wish to come all the plot through, or while you happen to have got a deep intention you protect to pursue, or now not it might maybe per chance most likely per chance well be predominant to have in tips that freediving is unruffled thought to be an horrifying sport. Correct as with other horrifying sports admire sky diving or rock hiking, you might maybe per chance well very properly be highly urged to protect a certification route from a honest correct instructor aside from strive to learn by yourself from books, articles, or YouTube movies.

These data sources shall be thought to be supplementary field subject as a change, and any unique tactics ought to unruffled be practiced below the steerage of a licensed freediving instructor with a apt agency.

Freediving instructors are there to discover about and repair your methodology, provide security, and adjust unfriendly habits that might maybe per chance well properly be unhealthy to you in due route. So in case your intention is to dive deep, you ought to unruffled be willing to make investments in yourself and your security and protect freediving as critically as you might maybe per chance well skydiving. And above all, endure in tips the first rule in freediving – in no plot dive by myself.