The effect of short-duration sprint interval exercise on plasma postprandial triacylglycerol levels in young men

J Sports Sci. 2014;32(10):911-6. doi: 10.1080/02640414.2013.865254. Epub 2014 Feb 6.

Abstract

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) x 4 h(-1) in the control trial and 7.26 ± 2.49 mmol · l(-1) x 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.

MeSH terms

  • Adult
  • Bicycling / physiology
  • Blood Glucose / metabolism
  • Breakfast
  • Dietary Fats / administration & dosage
  • Exercise / physiology*
  • Humans
  • Insulin / blood
  • Male
  • Postprandial Period*
  • Pulmonary Gas Exchange
  • Triglycerides / blood*
  • Young Adult

Substances

  • Blood Glucose
  • Dietary Fats
  • Insulin
  • Triglycerides