| Dynamic thermography: analysis of hand temperature during exercise. | |
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MedLine Citation:
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PMID: 9846937 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Exercise has a noted effect on skin blood flow and temperature. We aimed to characterize the normal skin temperature response to exercise by thermographic imaging. A study was conducted on ten healthy and active subjects (age=25.8+/-0.7 years) who were exposed to graded exercise for determination of maximal oxygen consumption (VO2 max), and subsequently to constant loads corresponding to 50%, 70%, and 90% of VO2 max. The skin temperature response during 20 min of constant load exercise is characterized by an initial descending limb, an ascending limb and a quasi-steady-state period. For 50% VO2 max, the temperature decrease rate was - 0.0075+/-0.001 degrees C/s during a time interval of 390+/-47 s and the temperature increase rate was 0.0055+/-0.0031 degrees C/s during a time interval of 484+/-99 s. The level of load did not influence the temperature decrease and increase rates. In contrast, during graded load exercise, a continuous temperature decrease of -0.0049+/-0.0032 degrees C/s was observed throughout the test. In summary, the thermographic skin response to exercise is characterized by a specific pattern which reflects the dynamic balance between hemodynamic and thermoregulatory processes. |
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Authors:
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A Zontak; S Sideman; O Verbitsky; R Beyar |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Annals of biomedical engineering Volume: 26 ISSN: 0090-6964 ISO Abbreviation: Ann Biomed Eng Publication Date: 1998 Nov-Dec |
Date Detail:
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Created Date: 1999-02-18 Completed Date: 1999-02-18 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0361512 Medline TA: Ann Biomed Eng Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 988-93 Citation Subset: IM |
Affiliation:
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The Heart System Research Center, The Julius Silver Institute of Biomedical Engineering, Department of Biomedical Engineering, Technion-Israel Institute of Technology, Haifa. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Biomedical Engineering Body Temperature Regulation / physiology Exercise / physiology* Exercise Test Hand Hemodynamics / physiology Humans Male Oxygen Consumption Skin / blood supply Skin Temperature / physiology* Thermography / methods* Time Factors |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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