Acute effects of accumulating exercise on postprandial lipemia and C-reactive protein concentrations in young men

Masashi Miyashita, Stephen F. Burns, David J. Stensel

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The current study investigated the acute effects of accumulating short bouts of running on circulating concentrations of postprandial triacylglycerol (TAG) and C-reactive protein (CRP). Ten men, age 21-32 yr, completed two 1-d trials. On 1 occasion participants ran at 70% of maximum oxygen uptake in six 5-min bouts (i.e., 8:30, 10, and 11:30 a.m. and 1, 2:30, and 4 p.m.) with 85 min rest between runs. On another occasion participants rested throughout the day. In both trials, participants consumed test meals at 9 a.m. and 12 p.m. In each trial, venous blood samples were collected at 8:30, 10, and 11:30 a.m. and 1, 2:30, 4, and 5:30 p.m. for plasma TAG measurement and at 8:30 a.m. and 5:30 p.m. for serum CRP measurement. Total area under the curve for plasma TAG concentration versus time was 10% lower on the exercise trial than the control trial (M ± SEM: 13.5 ± 1.8 vs. 15.0 ± 1.9 mmol · 9 hr-1 · L-1; p = .004). Serum CRP concentrations did not differ between trials or over time. This study demonstrates that accumulating short bouts of running reduces postprandial plasma TAG concentrations (a marker for cardiovascular disease risk) but does not alter serum CRP concentrations.

Original languageEnglish
Pages (from-to)569-582
Number of pages14
JournalInternational journal of sport nutrition and exercise metabolism
Volume19
Issue number6
DOIs
Publication statusPublished - 2009 Dec

Keywords

  • Accumulation
  • Energy deficit
  • Inflammation
  • Postprandial metabolism
  • Triacylglycerol

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Orthopedics and Sports Medicine
  • Nutrition and Dietetics

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