Purpose: Breath-hold divers (BHDs) often undergo repeated depth training, but the cumulative physiological consequences of such routines remain poorly established. This study aimed to determine whether repeated deep breath-hold dives (DBHDs) induce oxidative, inflammatory, and pulmonary stress responses in the absence of decompression-related mechanisms. The primary objective was to assess changes in salivary inflammatory markers, with secondary objectives including the evaluation of gas microbubbles, lung aeration loss, and hydration status.

Background: SCUBA diving involves exposure to a hyperbaric environment that can induce oxidative stress and inflammation. This study investigates the evolution of oxy-inflammation status in divers who performed repetitive dives in cold water.

Introduction: Diving induced immersion diuresis predisposes divers to dehydration. Dehydration is considered a risk factor for decompression sickness (DCS) but there is very little evidence to prove it. Dehydration also potentially modifies venous gas emboli (VGE) formation and impairs endothelial function. The purpose of this study was to report the effects of fluid loss during a dive on the diver's physiology.

Nitric oxide (NO) plays a crucial role in muscle oxidative capacity, which predicts muscle strength. This study aimed to investigate whether different breathing techniques (nasal or oral breathing) affect muscle performance during acute exhaustive exercise.

Introduction/Background Various organizations are evaluating their protocols for handling fatal dive accidents. However, the lack of data sharing between multiple entities, namely med-ical examiners and-researchers, remains a challenge in understanding these fatalities. This study aimed to evaluate the data obtained by different parties du ring investigations and assess how that data can be shared to facilitate more accurate analyses.