| Capacity of young males and females for running in desert heat. | |
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MedLine Citation:
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PMID: 593074 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Tolerance for sustained activity in the desert at about 40 degrees C was assessed on high school students, mostly athletically oriented and scholastically superior. The 14 males compared with the 12 females had an aerobic capacity greater by about one-half and a percentage of body fat smaller by about one-half. Each sex attained about the same percentage of aerobic capacity in their maximal sustained effort. This involved an increase in metabolic rate of 3 to 5 fold in females and 6 to 8 fold in males. In maximal sustained effort responses of males and females were alike in respect to rectal and skin temperatures and heart rate. At a rate at which nearly all walked for one hour, 100 m/min, there were no significant differences in metabolic rate, sweat rate nor in composition of sweat. Running at 120 m/min required maximal effort by most females; their maximal sweat rates ranged from 7.4 to 14.2 ml/m2.min. Most males were able to run at 160 m/min for one-half hor to one hour; their maximal sweat rates ranged from 11.3 to 14.6 m/m2.min. Superior capacity of males over females for sustained exercise in desert heat is related to their higher aerobic capacity and not to a difference in capacity for thermoregulation. |
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Authors:
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D B Dill; L F Soholt; D C McLean; T F Drost; M T Loughran |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Medicine and science in sports Volume: 9 ISSN: 0025-7990 ISO Abbreviation: Med Sci Sports Publication Date: 1977 |
Date Detail:
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Created Date: 1978-02-18 Completed Date: 1978-02-18 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0203246 Medline TA: Med Sci Sports Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 137-42 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Blood Pressure Desert Climate* Female Hot Temperature* Humans Male Oxygen Consumption Respiration Running* Skin Temperature Sports Medicine* Sweat / analysis Sweating |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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