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Effects of oxygen-enriched air on cognitive performance during SCUBA-diving - an open-water study
12 avril 2017, Brebeck, Anne-Kathrin; Deussen, Andreas; Schmitz-Pfeiffer, Henning; Range, Ursula; BALESTRA, Costantino; Cleveland, Sinclair; Schipke, Jochen,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Backround: Nitrogen narcosis impairs cognitive function, a fact relevant during SCUBA-diving. Oxygen-enriched air (nitrox) became popular in recreational diving, while evidence of its advantages over air is limited. AIM: Compare effects of nitrox28 and air on two psychometric tests. METHODS: In this prospective, double-blind, open-water study, 108 advanced divers (38 females) were randomized to an ...
Elevations of Extracellular Vesicles and Inflammatory Biomarkers in Closed Circuit SCUBA Divers
22 mars 2023, Arya, Awadhesh; BALESTRA, Costantino; Bhopale, Veena; Tominen, Laura; Raisanen-Sokolowski, Anne; Dugrenot, Emmanuel; Thom, Stephen,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Blood-borne extracellular vesicles and inflammatory mediators were evaluated in divers using a closed circuit rebreathing apparatus and custom-mixed gases to diminish some diving risks. "Deep" divers (n = 8) dove once to mean (+/-SD) 102.5 +/- 1.2 m of sea water (msw) for 167.3 +/- 11.5 min. "Shallow" divers (n = 6) dove 3 times on day 1, and then repetitively over 7 days to 16.4 +/- 3.7 msw, for ...
Evaluation of Divers' Neuropsychometric Effectiveness and High-Pressure Neurological Syndrome via Computerized Test Battery Package and Questionnaires in Operational Setting
12 avril 2019, Berenji Ardestani, Simin; BALESTRA, Costantino; Bouzinova, Elena; Loennechen, Oyvind,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Introduction: When divers are compressed to water depths deeper than 150 meter sea water (msw), symptoms of high-pressure neurological syndrome (HPNS) might appear due to rapid increase in pressure on the central nervous system during compression. The aim of this study was to first operate a new computerized tool, designed to monitor divers' wellbeing and cognitive function, and to record the results. ...
Evaluation of Protection Level, Respiratory Safety, and Practical Aspects of Commercially Available Snorkel Masks as Personal Protection Devices Against Aerosolized Contaminants and SARS-CoV2
15 juin 2020, GERMONPRÉ, Peter; Van Rompaeye, Dirk; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Introduction: The “Severe Acute Respiratory Syndrome Coronavirus 2” (SARS-CoV2) pandemic has led to a worldwide shortage of personal protection devices (PPD) for medical and paramedical personnel. Adaptation of commercially available snorkel masks to serve as full face masks has been proposed. Even not formally approved as PPD, they are publicized on social media as suitable for this use. Concerns ...
Evidence of Heritable Determinants of Decompression Sickness in Rats
22 juillet 2017, Lautridou, Jacky; Buzzacott, Peter; Belhomme, Marc; Dugrenot, Emmanuel; Lafère, Pierre; BALESTRA, Costantino; Guerrero, François,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
NTRODUCTION: Decompression sickness (DCS) is a complex and poorly understood systemic disease caused by inadequate desaturation following a decrease of ambient pressure. Strong variability between individuals is observed for DCS occurrence. This raises questions concerning factors that may be involved in the inter-individual variability of DCS occurrence. This study aimed to experimentally assess ...
Extreme Environments in Movement Science and Sport Psychology
20 décembre 2018, BALESTRA, Costantino; Jacek, Kot; Efrati, Shai; Guerrero, François; Blatteau, Jean-Eric; Besnard, Stéphane,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Feasibility of Detecting Brain Areas Involved in Extreme Breath-Hold Diving
20 janvier 2021, Jissendi-Tchofo, Patrice; Jdaoudi, Yassin; GERMONPRÉ, Peter; Brizzolari, Andrea; Musimu, Patrick; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
We report Blood Oxygen Level Dependent (BOLD) signal changes recorded in the brain of an elite breath-hold diver during voluntary dry long breath-hold by means of fMRI. An independent component analysis (ICA) method was applied to extract brain areas that are putatively involved in the apnea process network. We discuss the hypothesis that these BOLD signal variations express the functional adaptive ...
Field study of anthropomorphic and muscle performance changes among elite skippers following a transoceanic race
12 juin 2020, Lafère, Pierre; Gatzoff, Yann; Guerrero, François; Provyn, Steven; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
BACKGROUND: Ocean racing has become increasingly demanding, both physically and psychologically. The aim of the study was to assess global changes after a transoceanic race. MATERIALS AND METHODS: Eight male sailors were evaluated pre- and post-race through anthropometric measurements (weight, skinfold, girth at different level and estimated body fat percentage), multifrequency tetrapolar bioelectrical ...
Flying after diving: should recommendations be reviewed? In-flight echocardiographic study in bubble-prone and bubble-resistant divers
13 mai 2015, Cialoni, Danilo; Pieri, Massimo; BALESTRA, Costantino; Marroni, Alessandro,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
INTRODUCTION: Inert gas accumulated after multiple recreational dives can generate tissue supersaturation and bubble formation when ambient pressure decreases. We hypothesized that this could happen even if divers respected the currently recommended 24-hour pre-flight surface interval (PFSI). METHODS: We performed transthoracic echocardiography (TTE) on a group of 56 healthy scuba divers (39 male, ...
Full-Face Mask Use during SCUBA Diving Counters Related Oxidative Stress and Endothelial Dysfunction
15 janvier 2022, Levenez, Morgan; LAMBRECHTS, Kate; Mrakic-Sposta, Simona; Vezzoli, Alessandra; Germonpré, Peter; Pique, Hadrien; Virgili, Fabi; Bosco, Gerardo; Lafere, Pierre; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Impaired flow mediated dilation (FMD), an index of vascular stress, is known after SCUBA diving. This is related to a dysfunction of nitric oxide (NO) availability and a disturbance of the redox status, possibly induced by hyperoxic/hyperbaric gas breathing. SCUBA diving is usually performed with a mask only covering "half face" (HF) and therefore forcing oral breathing. Nasal NO production is ...