Sleep patterns in man during simulated 20-m nitrox saturation dives

Gas exchange in penguins during simulated dives to 30 and 68 m.

Pulmonary functions during saturation-excursion dives breathing air.

Blood nitrogen tensions of seals during simulated deep dives.

KOOYMAN, G. L., J. P. SCHROEDER, D. M. DENISON, D. D. HAMMOND, J. J. WRIGHT, and W. P. BERGMAN. Blood nitrogen tensions of seals during simulated deep dives. Am. J. Physiol. 223(5) : 1016-1020. 1972.-Three species of seal were subjected to a total of 65 simulated deep dives equivalent to depths ranging from 30 to 272 m (4-28.2 atm absolute (ATA)) in a hydraulic pressure chamber. Lung volume and...

Noninvasive myocardial contractility monitoring with seismocardiography during simulated dives.

OBJECTIVE To determine if bradycardia during hyperbaric exposure is accompanied by a negative influence on myocardial contractility. METHODS Accelerometer-based registration of myocardial compression waves with Seismocardiography (SCG) for noninvasive contractility monitoring. Comparative pulmonary artery (PA) catheter study (9 ICU-patients, mean = 67ys) with ejection-fraction (EF) equivalent...

Experiment of nitrox saturation diving with trimix excursion.

Depth limitations to diving operation with air as the breathing gas are well known: air density, oxygen toxicity, nitrogen narcosis and requirement for decompression. The main objectives of our experiment were to assess the decompression, counterdiffusion and performance aspect of helium-nitrogen-oxygen excursions from nitrox saturation. The experiment was carried out in a wet diving stimulator...