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Title: Effect of repeated sprints on postprandial endothelial function and triacylglycerol concentrations in adolescent boys
Authors: Sedgwick, Matthew J.
Morris, John G.
Nevill, Mary
Barrett, Laura A.
Keywords: Coronary heart disease risk
Flow-mediated dilation
Postprandial lipaemia
Repeated sprint exercise
High-intensity exercise
Issue Date: 2015
Publisher: © Taylor and Francis
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
Abstract: 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.
Description: 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
Version: Accepted for publication
DOI: 10.1080/02640414.2014.964749
URI: https://dspace.lboro.ac.uk/2134/21895
Publisher Link: http://dx.doi.org/10.1080/02640414.2014.964749
ISSN: 0264-0414
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

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