Chamber-based system for physiological monitoring of submerged exercising subjects

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Chamber-based system for physiological monitoring of submerged exercising subjects

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Title: Chamber-based system for physiological monitoring of submerged exercising subjects
Author: Thalmann, ED; Sponholtz, DK; Lundgren, CEG
Abstract: A system has been designed which allows for measurement of cardiorespiratory parameters in the fully submerged subject performing graded exercise. It consists of a horizontal wet chamber; a waterproofed, electrically braked bicycle ergometer; and a low-resistance "bag-in-a-box" breathing apparatus. Chamber and breathing apparatus design allow for a great deal of flexibility in both positioning of the subject and instrumentation. The 200-liter "bag-in-a-box" configuration provides the subject with humidified gas through 2.5 in. i.d. tubing. A rolling seal spirometer provides the lung counter volume. Provision is made for breath-by-breath gas analysis with a mass spectrometer. Hydrostatic pressure on the diver's thorax relative to chamber pressure can be easily and reproducibly varied over a wide range of positive and negative static lung loads. This system has been used on over 100 man-dives to depths equivalent to 6.5 ATA with oxygen consumptions up to 4.0 liters/min. *Exertion Human Immersion/*physiopathology Monitoring, Physiologic/*instrumentation Respiratory Function Tests/instrumentation Support, U.S. Gov't, Non-P.H.S.
Description: Undersea and Hyperbaric Medical Society, Inc. (http://www.uhms.org )
URI: PMID: 705946
http://archive.rubicon-foundation.org/2828
Date: 1978

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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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