Blar i NTNU Open på forfatter "Eftedal, Ingrid"
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Hemoglobin and Erythropoietin After Commercial Saturation Diving
Kiboub, Fatima Zohra; Balestra, Costantino; Loennechen, Øyvind; Eftedal, Ingrid (Journal article; Peer reviewed, 2018)Saturation divers are exposed to elevated partial pressure of oxygen (ppO2) in their hyperbaric work environment. Experimental studies indicate that oxygen transport is altered, and we have previously reported a drop in ... -
Hemoglobin during and following a four-week commercial saturation dive to 200 meters
Luczynski, Damian; Lautridou, Jacky; Hjelde, Astrid; Monnoyer, Roxane; Eftedal, Ingrid (Journal article; Peer reviewed, 2019)Commercial saturation divers must acclimatize to hyperbaric hyperoxia in their work environment, and subsequently readjust to breathing normal air when their period in saturation is over. In this study, we measured hemoglobin ... -
Hydration Status During Commercial Saturation Diving Measured by Bioimpedance and Urine Specific Gravity
Wekre, Stian Lande; Landsverk, Halvor Dagssøn; Lautridou, Jacky Jean Joseph; Hjelde, Astrid; Imbert, Jean Pierre; Balestra, Costantino; Eftedal, Ingrid (Peer reviewed; Journal article, 2022)Excessive fluid loss triggered by hyperbaric pressure, water immersion and hot water suits causes saturation divers to be at risk of dehydration. Dehydration is associated with reductions in mental and physical performance, ... -
Immune and inflammatory responses to freediving calculated from leukocyte gene expression profiles
Eftedal, Ingrid; Flatberg, Arnar; Drvis, Ivan; Dujic, Zeljko (Journal article; Peer reviewed, 2016)Freedivers hold their breath while diving, causing blood oxygen levels to decrease (hypoxia) while carbon dioxide increases (hypercapnia). Whereas blood gas changes are presumably involved in the progression of respiratory ... -
Quantification of guanine-derived urinary biomarkers of oxidative stress in saturation divers by LC-MS/MS
Lund, Hedda Juni (Master thesis, 2022)Metningsdykkere jobber under konstant trykksatte omgivelser med forhøyet deltrykk av oksygen for opp til flere uker. Dette kan føre til oksidativt stress, hvilket er assosiert med en rekke sykdommer, både akutte og kroniske. ... -
Shifts in the oral microbiota during a four-week commercial saturation dive to 200 meters
Monnoyer, Roxane; Haugum, Kjersti; Lautridou, Jacky; Flatberg, Arnar; Hjelde, Astrid; Eftedal, Ingrid (Peer reviewed; Journal article, 2021)During commercial saturation diving, divers live and work under hyperbaric and hyperoxic conditions. The myriads of bacteria that live in and on the human body must adjust to the resultant hyperbaric stress. In this study, ... -
Survival in Extreme Environments - Adaptation or Decompensation?, Volume 1
Tveita, Torkjel; Eftedal, Ingrid; Deb, Sanjoy Kumar (Book, 2022) -
The aging diver: endothelial biochemistry and its potential implications for cardiovascular health
Ardestani, Simin B; Buzzacott, Peter; Eftedal, Ingrid (Journal article; Peer reviewed, 2015)Divers are exposed to circulatory stress that directly affects the endothelial lining of blood vessels, and even asymptomatic dives are associated with inflammatory responses, microparticle release and endothelial dysfunction. ... -
Using Salivary Biomarkers for Stress Assessment in Offshore Saturation Diving: a Pilot Study
Monnoyer, Roxane; Lautridou, Jacky; Deb, Sanjoy Kumar; Hjelde, Astrid; Eftedal, Ingrid (Peer reviewed; Journal article, 2021)Health monitoring during offshore saturation diving is complicated due to restricted access to the divers, the desire to keep invasive procedures to a minimum, and limited opportunity for laboratory work onboard dive support ... -
What happens in the oral cavity of divers during commercial saturation diving? Environmental adaptations of the oral microbiota and effects on the divers’ physiology: analysis of the metagenome and salivary stress biomarkers.
Monnoyer, Roxane (Doctoral theses at NTNU;2022:84, Doctoral thesis, 2022)Commercial saturation diving has been used by the offshore oil and gas industry in the North Sea since the 1960s to perform long-term underwater work safely and efficiently. The highpressure oxygen conditions of the confined ... -
A Work Environment Under Pressure: Psychosocial Job Demands and Resources Among Saturation Divers
Romsbotn, Siri; Eftedal, Ingrid; Vaag, Jonas Rennemo (Journal article; Peer reviewed, 2022)