Respiratory function in the upright, working diver at 6.8 ATA (190 fsw)

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Respiratory function in the upright, working diver at 6.8 ATA (190 fsw)

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Title: Respiratory function in the upright, working diver at 6.8 ATA (190 fsw)
Author: Hickey, DD; Norfleet, WT; Pasche, AJ; Lundgren, CEG
Abstract: The influence of static lung loading on a number of respiratory parameters was investigated in subjects performing graded leg exercise in an upright posture while submerged and breathing air at ambient pressures up to 6.76 ATA. In comparison with a previous investigation of the prone posture, a lesser tendency to dyspnea was observed. Neutral and moderately positive static lung loads were associated with less dyspnea than were negative loads. Several indices of respiratory function remained relatively normal during exercise and exposure to varying static lung loads. However, there was a tendency for hypoventilation and CO2 accumulation during heavy exercise at 190 fsw; this was not strictly correlated with dyspnea or static lung load. We conclude that, if a full face mask is used, breathing gear for divers should provide a static lung load of approximately 0 to +10 cmH2O regardless of the diver's orientation in the water. When possible, divers should assume an upright posture while engaged in strenuous work. Analysis of Variance Biomechanics *Diving Human Posture *Respiration Support, Non-U.S. Gov't Support, U.S. Gov't, Non-P.H.S. *Work
Description: Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
URI: PMID: 3629740
http://archive.rubicon-foundation.org/3091
Date: 1987

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  • Undersea Biomedical Research Journal
    The Undersea Baromedical Research journal was published by the Undersea Medical Society, Inc. (now the Undersea and Hyperbaric Medical Society) quarterly from 1974 to 1992 when the name changed to the Undersea and Hyperbaric Medicine Journal.

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