Sedgwick 2015 Effect of repeated sprints on postprandial endothelial function and triacylglycerol concentrations in adolescent boys.pdf (574.74 kB)
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Effect of repeated sprints on postprandial endothelial function and triacylglycerol concentrations in adolescent boys

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journal contribution
posted on 04.07.2016, 10:35 by Matthew J. Sedgwick, John G. Morris, Mary Nevill, Laura BarrettLaura Barrett
Abstract: This study investigated whether repeated, very short duration sprints influenced endothelial function (indicated by flow-mediated dilation) and triacylglycerol concentrations following the ingestion of high-fat meals in adolescent boys. Nine adolescent boys completed two, 2-day main trials (control and exercise), in a counter-balanced, cross-over design. Participants were inactive on day 1 of the control trial but completed 40 × 6 s maximal cycle sprints on day 1 of the exercise trial. On day 2, capillary blood samples were collected and flow-mediated dilation measured prior to, and following, ingestion of a high-fat breakfast and lunch. Fasting flow-mediated dilation and plasma triacylglycerol concentration were similar in the control and exercise trial (P > 0.05). In the control trial, flow-mediated dilation was reduced by 20% and 27% following the high-fat breakfast and lunch; following exercise these reductions were negated (main effect trial, P < 0.05; interaction effect trial × time, P < 0.05). The total area under the plasma triacylglycerol concentration versus time curve was 13% lower on day 2 in the exercise trial compared to the control trial (8.65 (0.97) vs. 9.92 (1.16) mmol · l−1 · 6.5 h, P < 0.05). These results demonstrate that repeated 6 s maximal cycle sprints can have beneficial effects on postprandial endothelial function and triacylglycerol concentrations in adolescent boys.

History

School

  • Sport, Exercise and Health Sciences

Published in

Journal of Sports Sciences

Volume

33

Issue

8

Pages

806 - 816

Citation

SEDGWICK, M.J. ... et al, 2015. Effect of repeated sprints on postprandial endothelial function and triacylglycerol concentrations in adolescent boys. Journal of Sports Sciences, 33 (8), pp. 806 - 816

Publisher

© Taylor and Francis

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

Notes

This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences on 30th October 2014, available online: http://www.tandfonline.com/10.1080/02640414.2014.964749

ISSN

0264-0414

eISSN

1466-447X

Language

en