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The accumulation of exercise and postprandial endothelial function in boys
Author(s) -
Sedgwick M. J.,
Morris J. G.,
Nevill M. E.,
Barrett L. A.
Publication year - 2014
Publication title -
scandinavian journal of medicine and science in sports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.575
H-Index - 115
eISSN - 1600-0838
pISSN - 0905-7188
DOI - 10.1111/sms.12101
Subject(s) - postprandial , medicine , function (biology) , cardiology , physical therapy , endocrinology , biology , microbiology and biotechnology , insulin
The purpose of this study was to investigate the effect of accumulating 60 min of exercise on endothelial function and triacylglycerol concentrations following the ingestion of a high‐fat breakfast and lunch in 14 adolescent boys (aged 12 to 14 years). Two, 2‐day main trials (control and exercise) were completed in a counter‐balanced, cross‐over design. Participants were inactive on day 1 of the control trial but on day 1 of the exercise trial completed 6 × 10 min runs at 70% of peak oxygen uptake, spread over the day. On day 2, triacylglycerol concentrations and flow‐mediated dilation ( FMD ) were measured prior to, and following, ingestion of the high‐fat meals. In the control trial, FMD was reduced by 30% and 33% ( P < 0.001) following the high‐fat breakfast and lunch; following exercise these reductions were negated (main effect trial, P = 0.002, interaction effect trial × time, P < 0.001). The total and incremental areas under the triacylglycerol concentration vs time curve were reduced by 11% and 16% in the exercise trial; however, these differences were not significant ( P > 0.05). These results support the concept of accumulating physical activity for health in adolescents as the accumulated exercise attenuated the decline in FMD seen following the consumption of high‐fat meals.