It is well established that regular exercise can reduce the risk of cardiovascular disease, although the most time-efficient exercise protocol to confer benefits has yet to be established. The aim of the current study was to determine the effects of short-duration sprint interval exercise on postprandial triacylglycerol. Fifteen healthy male participants completed two 2 day trials. On day 1, participants rested (control) or carried out twenty 6 s sprints, interspersed with 24 s recovery (sprint interval exercise – 14 min for total exercise session). On day 2, participants consumed a high-fat meal for breakfast with blood samples collected at baseline, 2 h and 4 h. Gas exchange was also measured at these time points. On day 2 of control and sprint interval exercise trials, there were no differences (P < 0.05) between trials in plasma glucose, triacylglycerol, insulin or respiratory exchange ratio (RER). The area under the curve for plasma triacylglycerol was 7.67 ± 2.37 mmol · l–1.4 h–1 in the control trial and 7.26 ± 2.49 mmol · l–1.4 h–1 in the sprint interval exercise trial. Although the sprint exercise protocol employed had no significant effect on postprandial triacylglycerol, there was a clear variability in responses that warrants further investigation.
Allen, E., Gray, P., Kollias-Pearson, A., Oag, E., Pratt, K., Henderson, J., & Gray, S. R. (2014). The effect of short-duration sprint interval exercise on plasma postprandial triacylglycerol levels in young men. Journal of Sports Sciences, 32(10), 911-916. https://doi.org/10.1080/02640414.2013.865254