Hyperbaric effects on heart rate in professional SCUBA divers in thermal water

Bibliographic Data

ID4726628
AuthorsLuigi Fattorini (0000-0003-0931-9651, Sapienza University of Rome), Angelo Rodio (0000-0003-2964-7193, Università degli studi di Cassino e del Lazio Meridionale), Tommaso Di Libero (0009-0002-9064-4362, Università degli studi di Cassino e del Lazio Meridionale), Cristian Ieno (0000-0001-6201-7535, Sapienza University of Rome), Giovanna Tranfo (0000-0001-8973-6046, Istituto Nazionale per l'Assicurazione Contro gli Infortuni sul Lavoro), Daniela Pigini (0000-0002-7582-6179, Istituto Nazionale per l'Assicurazione Contro gli Infortuni sul Lavoro), Alessandro Pinto (0000-0002-4864-2294, Sapienza University of Rome), Enrico Marchetti (0000-0002-4199-3067, Istituto Nazionale per l'Assicurazione Contro gli Infortuni sul Lavoro)
Year2024
Volume6
Pages1429732-1429732
Publication date2024-09-30
Open AccessYes
TypeARTICLE
VenueFrontiers in Sports and Active Living (JOURNAL)
Journal identifiersISSN: 2624-9367 • E-ISSN: 2624-9367
PublisherFrontiers Media SA (PUBLISHER • CH)
DOI10.3389/fspor.2024.1429732
PMID39403693
OpenAlexW4403004342
LanguageEN
Citations received1
References cited30

IntroductionDiving in SCUBA modality modifies human physiology in many ways. These modifications have been studied since Paul Bert in a seminal work. This area of research is very sensible to technological development. At now, it is possible to record heart rate (HR) continuously while diving. The study of HR changes in SCUBA diving at different depths in a constant temperature of thermal water is the objective of the present paper.Methods18 healthy subjects were enrolled and HR was recorded while SCUBA diving in thermal water at a constant temperature of 33.6∘ C in the deepest Italian pool at Montegrotto (Padova, Italy). Three depths were investigated: −20, −30 and −40 meters. The HR has been recorded with a Galileo SOL diving computer. The dive was subdivided into three phases: descent (DSC), steady on depth (STD), post-dive (RSF), and average HR was evaluated in each phase. Moreover, considering the DSC and STD time duration, a statistical linear regression of HR and relative parameters, intercept and slope, were here assessed.ResultsIn STD phase, HR slope obtained by regression decreased with depth. A significant difference was found between the slope during STD at −20 vs. −40 m (p ≤ 0.05).DiscussionPresent results emphasized different HR physiological adjustments among diving phases. Firstly, during the DSC, a rapid HR decrease is recognized as probably due to a vagal response; secondly, at STD, the inward blood redistribution requires another physiological adjustment. This latter is depth-dependent because of a reduction of cardiac variability. Present data highlight the important cardiac stress need to counteract the diving activity

Animal science · Biology · Blood pressure · Heart rate · Scuba diving · Telecommunications · Telemetry · Cardiovascular and Diving-Related Complications · Cardiovascular and exercise physiology · Engineering · Environmental Science · Heart Rate Variability and Autonomic Control · Medicine · Geology · Internal Medicine · Oceanography

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