Roche, Denise M. and Rowland, T. W. and Garrard, M. and Marwood, S. and Unnithan, V. B. (2010) Skin microvascular reactivity in trained adolescents. European Journal of Applied Physiology, 108 (6). pp. 1201-1208. ISSN 1439-6319
Full text not available from this repository. (Request a copy)Abstract
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 ( TeX : 55 ± 6 mL kg−1 min−1) and nine age- and maturation-matched untrained controls ( TeX : 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; SkBFmax: 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 (CVCmax: 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.
| Item Type: | Article |
|---|---|
| Keywords: | Endothelium Post-occlusive reactive hyperaemia, Cutaneous vascular conductance, Skin blood flow, Exercise training, Adolescents |
| Subjects: | Q Science > QP Physiology |
| Faculty / Department: | Faculty of Human and Digital Sciences > School of Health and Sport Sciences |
| Depositing User: | Susan Murray |
| Date Deposited: | 05 Mar 2014 12:33 |
| Last Modified: | 12 Jul 2016 11:51 |
| URI: | https://hira.hope.ac.uk/id/eprint/311 |
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