Key result
Hyperbaric exposure at 60 meters increases HR ~19% and cardiac index, while 30 meters alters HRV.
Why the study?
There is a need to examine the role of the autonomic nervous system in cardiovascular response modulation after hyperbaric exposure in experienced divers.
Does hyperbaric exposure at 30 and 60 meters alter cardiovascular and autonomic responses in experienced divers?
Does hyperbaric exposure at 30 and 60 meters alter cardiovascular and autonomic responses in experienced divers?
Effect estimate: F = 7.64
Absolute Event Rate: 74.897% vs 63.165%
p-value: p=0.01
Hyperbaric exposure induces depth-dependent cardiovascular and autonomic nervous system responses in experienced divers.
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May warrant monitoring caution during deep dives; leaves open clinical relevance and needs prospective validation.
Kujawski et al. (2017) studied Healthy experienced divers (n=10). Hyperbaric chamber exposure (60 meters) vs. Baseline (before exposure) was evaluated on Heart rate (HR) (F = 7.64, p=0.01). Hyperbaric exposure at 60 meters significantly increased heart rate and cardiac index, whereas exposure at 30 meters primarily altered heart rate variability parameters.
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