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Energy exchanges of swimming manThree male swimmers underwent 10-min resting and 20-min swimming (breaststroke) exposures in a swimming flume. Water temperatures in separate exposures were 18, 26, and 33 C. At each water temperature the subjects rested and swam at water velocities of 0.50, 0.75, and 0.95 m/sec, which were designed to produce around 40, 70, and 100% of maximal aerobic power. Measurements were made of esophageal temperature, four skin temperatures, water temperature, heat flow from five local skin surfaces (Hatfield-Turner disks), and oxygen uptake. Calculations were made of mean area-weighted skin temperature and heat flow, metabolic rate, and heat storage. Internal body temperature changes after 20 min of swimming were related to water temperature, swimming intensity, and body composition.
Document ID
19740045269
Document Type
Reprint (Version printed in journal)
Authors
Nadel, E. R.
Holmer, I.
Bergh, U.
Astrand, P.-O.
Stolwijk, J. A. J.
(Gymnastik- och Idrottshogskolan; National Board of Occupational Safety and Health, Stockholm, Sweden; Yale University New Haven, Conn., United States)
Date Acquired
August 7, 2013
Publication Date
April 1, 1974
Publication Information
Publication: Journal of Applied Physiology
Volume: 36
Subject Category
Biotechnology
Funding Number(s)
CONTRACT_GRANT: NIH-ES-00354
CONTRACT_GRANT: NGR-07-008-002
Distribution Limits
Public
Copyright
Other
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