Document Detail


Skin microvascular reactivity in trained adolescents.
MedLine Citation:
PMID:  20033203     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Whilst endothelial dysfunction is associated with a sedentary lifestyle, enhanced endothelial function has been documented in the skin of trained individuals. The purpose of this study was to investigate whether highly trained adolescent males possess enhanced skin microvascular endothelial function compared to their untrained peers. Seventeen highly and predominantly soccer trained boys (V(O)(2)(peak): 55 +/- 6 mL kg(-1) min(-1)) and nine age- and maturation-matched untrained controls (V(O)(2)(peak): 43 +/- 5 mL kg(-1) min(-1)) aged 13-15 years had skin microvascular endothelial function assessed using laser Doppler flowmetry. Baseline and maximal thermally stimulated skin blood flow (SkBF) responses were higher in forearms of trained subjects compared to untrained participants [baseline SkBF: 11 +/- 4 vs. 9 +/- 3 perfusion units (PU), p < 0.05; SkBF(max): 282 +/- 120 vs. 204 +/- 68 PU, p < 0.05]. Similarly, cutaneous vascular conductance (CVC) during local heating was superior in the forearm skin of trained versus untrained individuals (CVC(max): 3 +/- 1 vs. 2 +/- 1 PU mmHg(-1), p < 0.05). Peak hyperaemia following arterial occlusion and area under the reactive hyperaemia curve were also greater in forearm skin of the trained group (peak hyperaemia: 51 +/- 21 vs. 35 +/- 15 PU, p < 0.05; area under curve: 1596 +/- 739 vs. 962 +/- 796 PUs, p < 0.05). These results suggest that chronic exercise training in adolescents is associated with enhanced microvascular endothelial vasodilation in non-glabrous skin.
Authors:
Denise M Roche; T W Rowland; M Garrard; S Marwood; V B Unnithan
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Publication Detail:
Type:  Journal Article     Date:  2009-12-23
Journal Detail:
Title:  European journal of applied physiology     Volume:  108     ISSN:  1439-6327     ISO Abbreviation:  Eur. J. Appl. Physiol.     Publication Date:  2010 Apr 
Date Detail:
Created Date:  2010-03-22     Completed Date:  2010-06-23     Revised Date:  2010-07-13    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  1201-8     Citation Subset:  IM    
Affiliation:
Sport and Exercise Physiology Research Team, Liverpool Hope University, Liverpool, UK. roched@hope.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Exercise / physiology*
Humans
Male
Microcirculation / physiology*
Physical Exertion / physiology*
Physical Fitness / physiology*
Skin / blood supply*
Skin Physiological Phenomena*
Vasodilation / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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