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Title: An instrument to monitor physiological and environmental parameters associated with heat stress on an ambulatory subject.
Authors: Cassels, B M
Citation: Australasian physical & engineering sciences in medicine 1991-06; 14(2): 103-11
Abstract: This paper outlines the development and construction of an instrument for use on an ambulatory subject which monitors selected physiological and environmental parameters that are a reflection of the degree of physiological strain associated with heat stress. The resulting instrument is rugged, reliable, and uses existing practical technology for in-the-field ambulatory monitoring, and provides minimal restriction to subject movement. The physiological parameters monitored (heart rate and skin temperature) were selected following examination of systemic, skin, and psychoneurotic heat disorders, with the environmental parameters (wind velocity, ambient temperature and relative humidity) based on existing heat stress indices' correlation with physiological parameters. A microprocessor is utilized for data acquisition, mathematical computation and long term storage, and software for downloading the data to a large mainframe computer is provided. Following calibration of the transduction circuits, the instrument was assembled and tested. Improvements are required to obtain the reliability originally envisaged. Additional field trials would see the collection of data to establish criteria to determine the values of the parameters monitored enabling prediction of the onset of heat stress in hot, humid environments.
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Journal title: Australasian physical & engineering sciences in medicine
Publication Date: 1991-06
ISSN: 0158-9938
Type: Journal Article
Research Support, Non-U.S. Gov't
Appears in Collections:(a) NT Health Research Collection

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