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June 15, 2020Diving and Hyperbaric Medicine JournalOpen Access

Assessment of a dive incident using heart rate variability

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Why the study?

Scuba diving likely impacts the autonomic nervous system, but evaluating heart rate variability during unexpected stressful events during diving required investigation.

Does a stressful diving incident alter heart rate variability in experienced recreational divers?

Population

Three experienced divers witnessing an unplanned stressful dive incident

Comparison

Heart rate variability before vs after an unplanned dive incident

Design

Observational case study using underwater Holter monitoring

Authors

AZAndré ZenskeUniversity of Applied Sciences LandshutAKAndreas KochKiel UniversityWKWataru KählerNaval Medical Research Command

Discussion

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Implication

Acute stress from witnessed equipment failure may alter HRV in divers; leaves open whether ANS monitoring improves dive safety.

Structured PICO

Does a stressful diving incident alter heart rate variability in experienced recreational divers?

P
Population
3 experienced recreational scuba divers (from a group of 5) who witnessed an unplanned moderately stressful incident (regulator icing) during a dive in a lake.
I
Intervention
Exposure to a stressful diving incident (regulator icing and free-flow).
C
Comparator
Pre-incident diving period and pre-dive baseline.
O
Outcome
Heart rate variability (HRV) measures (SDNN, RMSSD, LF, HF, LF/HF) and heart rate.surrogate

Continuous underwater ECG monitoring can detect acute autonomic nervous system changes via heart rate variability during stressful diving incidents.

Limitations

  • small sample size

Cite This Study

Zenske et al. (2020) studied this question.

synapsesocial.com/papers/6a7270b9a528af2d65c46b89https://doi.org/10.28920/dhm50.2.157-163
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Heart rate variability and clinical cardiology.1994 · 120 citations
  2. 2Heart Rate Variability in Occupational Health ―A Systematic Review2009 · 170 citations
  3. 3Reference values for short‐term resting‐state heart rate variability in healthy adults: Results from the Brazilian Longitudinal Study of Adult Health—ELSA‐Brasil study2018 · 74 citations
  4. 4The PhysioCam: A Novel Non-Contact Sensor to Measure Heart Rate Variability in Clinical and Field Applications2017 · 53 citations
  5. 5A Quantitative Systematic Review of Normal Values for Short-Term Heart Rate Variability in Healthy Adults2010 · 883 citations