Elevation of spectral components of electrodermal activity precedes central nervous system oxygen toxicity symptoms in divers.

ABSTRACT:

Background

Oxygen-rich breathing mixtures up to 100% are used in some underwater diving operations for several reasons. Breathing elevated oxygen partial pressures (PO₂) increases the risk of developing central nervous system oxygen toxicity (CNS-OT) which could impair performance or result in a seizure and subsequent drowning. We aimed to study the dynamics of the electrodermal activity (EDA) and heart rate (HR) while breathing elevated PO₂ in the hyperbaric environment (HBO₂) as a possible means to predict impending CNS-OT.

Methods

EDA is recorded during 50 subject exposures (26 subjects) to evaluate CNS-OT in immersed (head out of water) exercising divers in a hyperbaric chamber breathing 100% O₂ at 35 feet of seawater (FSW), (P

SUBMITTER: Posada-Quintero HF 

PROVIDER: S-EPMC11659611 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature