Physiological responses to prolonged exercise in extreme heat conditions: a case study
The purpose of this case study was to examine the physiological responses of a male subject 59 yrs of age while running eight 1-mile circuits under extreme heat conditions. The subject's body was previously acclimated to exercise in hot conditions with adequate fluid intake. Body temperature in...
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| Published in: | Journal of exercise physiology online Vol. 17; no. 4; pp. 1 - 9 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
American Society of Exercise Physiologists
01-08-2014
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | The purpose of this case study was to examine the physiological responses of a male subject 59 yrs of age while running eight 1-mile circuits under extreme heat conditions. The subject's body was previously acclimated to exercise in hot conditions with adequate fluid intake. Body temperature increased very slightly from 37.83[degrees]C before exercise to 37.94[degrees]C during exercise. Serum sodium level increased from 140 mmol x [L.sup.-1] before exercise to 149 mmol x [L.sup.-1] after exercise, which is consistent with mild dehydration. The body of this well-trained athletic elderly male responded well to exercise under extreme heat conditions through physiologic mechanisms that included copious sweating and reduced renal blood flow. Key Words: Heat Acclimation, Running, Sweating, Renal Blood Flow |
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| Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
| ISSN: | 1097-9751 1097-9751 |