Hana Kai II: Human Physiology during a 17-Day Dry Saturation Dive at 18.6 ATA.

摘要

The present dive (Hana Kai II) was designed to carry out comprehensive studies on energy balance, body fluid balance, cardiorespiratory functions, maximal oxygen uptake, psychological performance and physiological responses to cold during a prolonged exposure to a dry heliox hyperbaric environment in man. The dive was carried out using Aegir to a depth of 580 ft (18.6 ATA) over a 30 day period in March-April 1975. Following a 3 day predive control at 1 ATA air (Period 1), 5 male divers spent 17 days at 18.6 ATA heliox environment (Periods 2-6), and returned to 1 ATA air after 7 days of decompression (Periods 7-8). They stayed an additional 3 days inside the chamber for postdive control measurements (Period 9). The chamber temperature was maintained at 25-27C during Periods 1 and 9, 30-31C during Periods 2-5, and 27-28C during Period 6. (Author)