What Researchers Did
Researchers measured plasma levels of adrenaline, dopamine, and noradrenaline in nine subjects before, during, and after hyperbaric oxygen therapy.
What They Found
Adrenaline levels were elevated immediately prior to hyperbaric oxygen therapy but then fell and stabilized once treatment commenced. No significant fluctuations were noted in plasma dopamine or noradrenaline levels during the treatment period. This study did not support the premise of suppressed endogenous plasma catecholamine levels during hyperbaric oxygen.
Canadian Relevance
This study has no direct Canadian connection.
Study Limitations
The study was conducted with a very small sample size of only nine subjects.