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

Effect of repeated sprints on postprandial endothelial function and triacylglycerol concentrations in adolescent boys

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posted on 2016-07-04, 10:35 authored 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