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Comparison of insulation provided by dry or wetsuits among recreational divers during cold water immersion (< 5 degrees C)
05 octobre 2021, Lafère, Pierre; Guerrero, François; GERMONPRÉ, Peter; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
BACKGROUND: Divers thermal status influences susceptibility to decompression sickness hence the need for proper insulation during immersion in cold water. However, there is a lack of data on thermal protection provided by diving suits, hence this study. MATERIALS AND METHODS: Two different groups of divers wearing either a wetsuit (n = 15) or a dry suit (n = 15) volunteered for this study. Anthropometric ...
Comparison of insulation provided by dry or wetsuits among recreational divers during cold water immersion (< 5 degrees C)
05 octobre 2021, Lafère, Pierre; Guerrero, François; GERMONPRÉ, Peter; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
BACKGROUND: Divers thermal status influences susceptibility to decompression sickness hence the need for proper insulation during immersion in cold water. However, there is a lack of data on thermal protection provided by diving suits, hence this study. MATERIALS AND METHODS: Two different groups of divers wearing either a wetsuit (n = 15) or a dry suit (n = 15) volunteered for this study. Anthropometric ...
Critical Flicker Fusion Frequency: A Marker of Cerebral Arousal During Modified Gravitational Conditions Related to Parabolic Flights
02 octobre 2018, BALESTRA, Costantino; Machado, Marie-Laure; Theunissen, Sigrid; BALESTRA, Ambre; Cialoni, Danilo; Clot, Christian; Besnard, Stépane; Kammacher, Laura; Delzenne, Julie; GERMONPRÉ, Peter; Lafère, Pierre,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
In situ evaluation of human brain performance and arousal remains challenging during operational circumstances, hence the need for a rapid, reliable and reproducible tool. Here we hypothesized that the Critical flicker fusion frequency (CFFF) reflecting/requiring visual integration, visuo-motor skills and decision-taking process might be a powerful, fast and simple tool in modified gravity environments. ...
Dark chocolate reduces endothelial dysfunction after successive breath-hold dives in cool water
16 septembre 2013, THEUNISSEN, Sigrid; Schumacker, Julie; Guerrero, François; Tillmans, Frauke; BOUTROS, Antoine; Lambrechts, Kate; Mazur, Alexandra; Pieri, Massimo; GERMONPRÉ, Peter; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Objective: The aim of this study is to observe the effects of dark chocolate on endothelial function after a series of successive apnea dives in non-thermoneutral water.
Methods: Twenty breath-hold divers were divided into two groups: a control group (8 males and 2 females) and a chocolate group (9 males and 1 female). The control group was asked to perform a series of dives to 20 m adding up to ...
Decreased Incidence of Pulmonary Barotrauma After Discontinuation of Emergency Free Ascent Training
22 août 2018, Lafère, Pierre; GERMONPRÉ, Peter; Guerrero, François; Marroni, Alessandro; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
INTRODUCTION: Because a significant association between training to perform emergency free ascent (EFA) and the occurrence of pulmonary barotrauma (PBT) was demonstrated in 2006, the Belgian Underwater Federation (BUF) decided to discontinue this procedure. An evaluation was needed 10 yr after the implementation of this change. METHODS: All medical records with a diagnosis of PBT that occurred in ...
Diving deeper into SCUBA Science
12 février 2017, BALESTRA, Costantino; GERMONPRÉ, Peter,
- HE Bruxelles Brabant
,
- Livre/Ouvrage ou monographie
Livre/Ouvrage ou monographie
The editors of and authors of this book are a cadre of scientists and physicians with broad experience and knowledge of diving physiology and decompression theory. As is often the case, it requires a group effort to succeed in advancing practical knowledge. The colloquialism "the whole is greater than the sum of its parts" is often true and the PHYPODE Reasearch Group epitomizes this concept. By ...
Diving physiopathology: the end of certainties? Food for thought
27 juin 2019, BALESTRA, Costantino; GERMONPRÉ, Peter; Rocco, Monica; Biancofiore, Giovanni; Kot, Jacek,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Our understanding of decompression physiopathology has slowly improved during this last decade and some uncertainties have disappeared. A better understanding of anatomy and functional aspects of Patent Foramen Ovale (PFO) have slowly resulted in a more liberal approach toward the medical fitness to dive for those bearing a PFO. Circulating vascular gas emboli (VGE) are considered the key actors in ...
Early detection of diving-related cognitive impairment of different nitrogen-oxygen gas mixtures
30 juin 2019, Lafère, Pierre; HEMELRYCK, Walter; GERMONPRÉ, Peter; Matity, Luba; Guerrero, François; BALESTRA, Costantino,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
NTRODUCTION: Cognitive impairment related to inert gas narcosis (IGN) is a threat to diving safety and operations at depth that might be reduced by using enriched air nitrox (EANx) mixtures. Using critical flicker fusion frequency (CFFF), a possible early detection of cognitive abilities/cerebral arousal impairment when breathing different oxygen (O2) fractions was investigated. METHODS: Eight male ...
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 ...
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 ...