Energy exchanges of swimming man
| Autor: | P.-O. Astrand, Ulf Bergh, Ingvar Holmér, Jan A. J. Stolwijk, E. R. Nadel |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Adult
Male Convective heat transfer Physiology Physical Exertion Thermodynamics Heat transfer coefficient Body Temperature Animal science Oxygen Consumption Physiology (medical) medicine Humans Breaststroke Swimming Chemistry Shivering Temperature Water Environmental exposure Environmental Exposure Flume Body Temperature Changes Body Composition medicine.symptom Skin Temperature Intensity (heat transfer) Body Temperature Regulation |
| Zdroj: | Journal of applied physiology. 36(4) |
| ISSN: | 0021-8987 |
| Popis: | Three 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. |
| Databáze: | OpenAIRE |
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