Pulmonary vascular adaptations to hypoxia in elite breath-hold divers
Thomas Kjeld,
Anders Brenøe Isbrand,
Henrik Christian Arendrup
et al.
Abstract:IntroductionElite breath-hold divers (BHD) possess several oxygen conserving adaptations to endure long dives similar to diving mammals. During dives, Bottlenose Dolphins may increase the alveolar ventilation (VA) to perfusion (Q) ratio to increase alveolar oxygen delivery. We hypothesized that BHD possess similar adaptive mechanisms during apnea.Methods and resultsPulmonary blood volume (PBV) was determined by echocardiography, 15O-H2O PET/CT, and cardiac MRi, (n = 6) during and after maximum pool apneas. Pul… Show more
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