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Variability in circulating gas emboli after a same scuba diving exposure
30 avril 2018,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
PURPOSE: A reduction in ambient pressure or decompression from scuba diving can result in ultrasound-detectable venous gas emboli (VGE). These environmental exposures carry a risk of decompression sickness (DCS) which is mitigated by adherence to decompression schedules; however, bubbles are routinely observed for dives well within these limits and significant inter-personal variability in DCS risk ...
Decreased Incidence of Pulmonary Barotrauma After Discontinuation of Emergency Free Ascent Training
22 août 2018,
- 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 ...
Feasibility of Detecting Brain Areas Involved in Extreme Breath-Hold Diving
20 janvier 2021,
- 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 ...
Les effets du crochetage myo-aponévrotique sur l’architecture et les propriétés intrinsèques du muscle gastrocnemius medialis à l’étirement
20 septembre 2018,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Background : this study investigates the effects of the diacutaneous
myo-aponeurosis fibrolysis technique, also called
hook treatment, on the architectural and mechanical aspects
of the muscle.
Methods : the overall muscle-tendon unit passive tension and
range of motion and muscle architecture of the medial gastrocnemius
(fascicle length and pennation angle), as well as
mechanical intrinsic ...
Diving physiopathology: the end of certainties? Food for thought
27 juin 2019,
- 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 ...
Coping With Extreme Environments: A Physiological/Psychological Approach
25 juin 2019,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Editorial, Introduction à un Livre
Evaluation of Divers' Neuropsychometric Effectiveness and High-Pressure Neurological Syndrome via Computerized Test Battery Package and Questionnaires in Operational Setting
12 avril 2019,
- 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. ...
Static Metabolic Bubbles as Precursors of Vascular Gas Emboli During Divers' Decompression: A Hypothesis Explaining Bubbling Variability
30 juillet 2019,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Introduction: The risk for decompression sickness (DCS) after hyperbaric exposures (such as SCUBA diving) has been linked to the presence and quantity of vascular gas emboli (VGE) after surfacing from the dive. These VGE can be semi-quantified by ultrasound Doppler and quantified via precordial echocardiography. However, for an identical dive, VGE monitoring of divers shows variations related to ...
Early detection of diving-related cognitive impairment of different nitrogen-oxygen gas mixtures
30 juin 2019,
- 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 ...
Clustering of recreational divers by their health conditions in a database of a citizen science project
05 mai 2019,
- HE Bruxelles Brabant
,
- Article scientifique
Article scientifique
Divers Alert Network Europe has created a database with a large amount of dive-related data that has been collected since 1993 within the scope of the Diving Safety Laboratory citizen science project. The main objectives of this study are the grouping divers by their health information and revealing significant differences in diving parameters using data mining techniques. Due to the methodology of ...