oru.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Hook Breathing Facilitates SaO(2) Recovery After Deep Dives in Freedivers With Slow Recovery
Departament of Health, Centro Superior de Estudios Universitarios La Salle, Universidad Autónoma de Madrid, Madrid, Spain; Department of Health Sciences, Mid Sweden University, Östersund, Sweden.
Örebro universitet, Institutionen för hälsovetenskaper. Department of Health Sciences, Mid Sweden University, Östersund, Sweden. (Enviromental Physiology Group)ORCID-id: 0000-0002-4627-7254
Department of Health Sciences, Mid Sweden University, Östersund, Sweden. (Enviromental Physiology Group)
2019 (engelsk)Inngår i: Frontiers in Physiology, ISSN 1664-042X, E-ISSN 1664-042X, Vol. 10, artikkel-id 1076Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

(SaO2)To facilitate recovery from hypoxia, many freedivers use a breathing method called "hook breathing" (HB) after diving, involving an interrupted exhale to build up intrapulmonary pressure. Some divers experience a delay in recovery of arterial oxygen saturation (SaO2) after diving, interpreted as symptoms of mild pulmonary edema, and facilitated recovery may be especially important in this group to avoid hypoxic "blackout." We examined the influence of HB on recovery of (SaO2) in freedivers with slow recovery (SR) and fast recovery (FR) of (SaO2) after deep "free immersion" (FIM) apnea dives to 30 m depth. Twenty-two male freedivers, with a mean (SD) personal best in the discipline FIM of 57(26) m, performed two 30 m deep dives, one followed by HB and one using normal breathing (NB) during recovery, at different days and weighted order. (SaO2) and heart rate (HR) were measured via pulse oximetry during recovery. The SR group (n = 5) had a faster (SaO2) recovery using HB, while the FR group (n = 17) showed no difference between breathing techniques. At 105 s, the SR group reached a mean (SD) SaO(2) of 95(5)% using HB, while using NB, their (SaO2) was 87(5)% (p < 0.05), and 105-120 s after surfacing(SaO2) was higher with HB (p < 0.05). In SR subjects, the average time needed to reach 95% (SaO2) with HB was 60 s, while it was 120 s at NB (p < 0.05). HR was similar in the SR group, while it was initially elevated at HB in the FR group (p < 0.05). We conclude that HB efficiently increases (SaO2) recovery in SR individuals, but not in the FR group. The proposed mechanism is that increased pulmonary pressure with HB will reverse any pulmonary edema and facilitate oxygen uptake in divers with delayed recovery.

sted, utgiver, år, opplag, sider
Frontiers Media S.A., 2019. Vol. 10, artikkel-id 1076
Emneord [en]
Apnea, breath-hold, respiration, hypoxia, syncope, blackout, pulmonary edema, freediving safety
HSV kategori
Forskningsprogram
Idrott med inriktning mot fysiologi; Fysiologi
Identifikatorer
URN: urn:nbn:se:oru:diva-76442DOI: 10.3389/fphys.2019.01076ISI: 000483335500001OAI: oai:DiVA.org:oru-76442DiVA, id: diva2:1351587
Merknad

Funding Agencies:

Centro Superior de Estudios Universitarios La Salle (Madrid)  

Swedish Centre for Research in Sports (CIF)  

Mid Sweden University 

Tilgjengelig fra: 2019-09-16 Laget: 2019-09-16 Sist oppdatert: 2019-10-11bibliografisk kontrollert

Open Access i DiVA

Hook Breathing Facilitates SaO2 Recovery After Deep Dives in Freedivers With Slow Recovery(945 kB)125 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 945 kBChecksum SHA-512
9a7ba9b33cea8e37954f9332664c30cec7d81f51f4aa407e8ab359c0d0866e254f0a55f623b8abd025dbbee0be33ad2bc8f83dbea824154cbf309e2995b7eae7
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Personposter BETA

Rodríguez-Zamora, Lara

Søk i DiVA

Av forfatter/redaktør
Rodríguez-Zamora, Lara
Av organisasjonen
I samme tidsskrift
Frontiers in Physiology

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 125 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 151 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf