| Skin vascular response in the hand during sinusoidal exercise in physically trained subjects. | |
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MedLine Citation:
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PMID: 14504948 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effect of physical training on the cutaneous vascular response during transient exercise load is unclear. We determined the phase response and amplitude response of cutaneous vascular conductance (CVC) in the hand during sinusoidal exercise in endurance exercise-trained and untrained subjects. Subjects exercised on a cycle ergometer with a sinusoidal load for 32 min. The load variation ranged from 10% [23 (1) W in the trained group, 19 (1) W in the untrained group] to 60% [137 (4) W, 114 (6) W] of peak O(2) uptake, and five different time periods (1, 2, 4, 8, and 16 min) were selected. Skin blood flow in the dorsal hand and palm were monitored by laser-Doppler flowmetry. CVC was evaluated from the ratio of blood flow to mean arterial pressure. During sinusoidal exercise, the amplitude of CVC was smaller in the dorsal hand than palm for shorter periods (1, 2, and 4 min) ( P<0.05). The phase lag of CVC was smaller in the dorsal hand than palm for longer periods (8 and 16 min) ( P<0.05). The amplitude response did not differ significantly between the two groups. The phase lag of CVC in the dorsal hand ( P<0.05) and palm ( P=0.06) was larger in the trained group than untrained group. These findings suggest that glabrous and nonglabrous skin vascular responses in the hand differ during transient exercise load, and physically trained subjects show a slower vascular response in the two skin areas to exercise stimulation than do untrained subjects. |
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Authors:
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Fumio Yamazaki; Ryoko Sone |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article Date: 2003-07-09 |
Journal Detail:
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Title: European journal of applied physiology Volume: 90 ISSN: 1439-6319 ISO Abbreviation: Eur. J. Appl. Physiol. Publication Date: 2003 Sep |
Date Detail:
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Created Date: 2003-09-23 Completed Date: 2004-09-13 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 100954790 Medline TA: Eur J Appl Physiol Country: Germany |
Other Details:
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Languages: eng Pagination: 159-64 Citation Subset: IM |
Affiliation:
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Department of Clinical Pathophysiology, School of Health Sciences, Univ. of Occupational and Environmental Health (UOEH), 1-1 Iseigaoka, Yahatanishi-ku, 807-8555 Kitakyushu, Japan. yamazaki@health.uoeh-u.ac.jp |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Flow Velocity Cross-Sectional Studies Exercise / physiology* Exercise Test / methods* Hand / blood supply*, physiology* Humans Male Periodicity Physical Fitness / physiology* Skin / blood supply* Skin Physiological Phenomena* Vascular Resistance / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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