Cardiovascular changes during deep breath-hold dives in a pressure chamber.

@article{Ferrigno1997CardiovascularCD,
  title={Cardiovascular changes during deep breath-hold dives in a pressure chamber.},
  author={M Ferrigno and G. Samuelli Ferretti and Anthie Ellis and Dan E. Warkander and Max Costa and Paolo Cerretelli and Claes E. G. Lundgren},
  journal={Journal of applied physiology},
  year={1997},
  volume={83 4},
  pages={1282-90}
}
Electrocardiogram, cardiac output, and blood lactate accumulation were recorded in three elite breath-hold divers diving to 40-55 m in a pressure chamber in thermoneutral (35 degrees C) or cool (25 degrees C) water. In two of the divers, invasive recordings of arterial blood pressure were also obtained during dives to 50 m in cool water. Bradycardia during the dives was more pronounced and developed more rapidly in the cool water, with heart rates dropping to 20-30 beats/min. Arrhythmias… CONTINUE READING

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