DEVELOPMENT OF A TIME-LAPSE PHOTOGRAPHIC ANALYSIS OF SWEATING PATTERN

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Authors
  1. Bar-or, O.
  2. Calvert, R.E.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);McMaster Univ, Hamilton ONT (CAN)
Abstract
Numerous methods have been developed to assess the pattern of local sweating in humans. None of three methods have yielded information about changes with time in sweating pattern. Since sweating is the prime mechanism used by humans to regulate body temperature during heat stress, the purpose of this project was to develop a time-lapse photographic method in order to be able to quantify the kinetics of sweating. The developed method offers the following improvements over existing methods of skin photography: dying of the sweat yields a high optical contrast between areas of the skin and are covered by sweat and those that remain dry; this allows for an automated computer-assisted counting of the sweat drops and digitization of the images, which reduces subjectivity and enhances reliability and reproducibility; the time-lapse sequence enables one to calculate changes with time in the number of active sweat glands, drop size and proportion of the area of skin covered by sweat; other components of sweating pattern that can be derived from the above variables include sweating threshold and sensitivity of the sweat glands to thermal and pharmacological stimuli.
Keywords
Sweating;Time-lapse photography
Date of publication
21 Jul 1995
Number of Pages
87
DSTKIM No
95-03019
CANDIS No
152887
Format(s):
Document Image stored on Optical Disk;Hardcopy

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