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

Sedgwick, M.J., Morris, J.G. ORCID: 0000-0001-6508-7897, Nevill, M.E. ORCID: 0000-0003-2498-9493 and Barrett, L.A., 2015. Effect of repeated sprints on postprandial endothelial function and triacylglycerol concentrations in adolescent boys. Journal of Sports Sciences, 33 (8), pp. 806-816. ISSN 0264-0414

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Abstract

This study investigated if 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 x 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 x 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-1·6.5h, 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.

Item Type: Journal article
Alternative Title: Sprint exercise and endothelial function in boys [short title]
Publication Title: Journal of Sports Sciences
Creators: Sedgwick, M.J., Morris, J.G., Nevill, M.E. and Barrett, L.A.
Publisher: Routledge
Date: 2015
Volume: 33
Number: 8
ISSN: 0264-0414
Identifiers:
NumberType
10.1080/02640414.2014.964749DOI
Divisions: Schools > School of Science and Technology
Depositing User: Jonathan Gallacher
Date Added: 09 Mar 2016 14:00
Last Modified: 09 Jun 2017 13:59
URI: http://irep.ntu.ac.uk/id/eprint/27103

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