Exercise and Postprandial Plasma Triacylglycerol Concentrations in Healthy Adolescent Boys

Abstract

Both continuous-exercise and intermittent-games activity reduce [TAG] in healthy adolescent boys when performed the afternoon before ingesting a high-fat meal.

Effect of repeated sprints on postprandial endothelial function and triacylglycerol concentrations in adolescent boys

“…In previous studies in adolescents, moderate-intensity exercise has been reported to reduce the total area under the plasma triacylglycerol concentrations versus time curve by 8 to 22% (Barrett et al, 2007;Lee et al, 2013;MacEneaney et al, 2009;Sedgwick et al, 2013;Tolfrey et al, 2008;Tolfrey et al, 2012) and high-intensity exercise (10 x 1 min run at 100% peak oxygen uptake) by 11% (Thackray, Barrett, & Tolfrey, 2013). In the present study the corresponding reduction was 13%, demonstrating that repeated bouts of very short (6 s) maximal sprints are effective at reducing postprandial triacylglycerol concentrations.…”

“…A single 30 to 180 min session of moderate-intensity exercise completed 12 to 18 h prior to the ingestion of a high-fat meal has consistently been shown to lower postprandial triacylglycerol concentrations (Barrett, Morris, Stensel, & Nevill, 2006;Barrett, Morris, Stensel, & Nevill, 2007;Gill et al, 2004;Lee, Burns, Kuk, & Arslanian, 2013;MacEneaney et al, 2009;Petitt & Cureton, 2003;Sedgwick et al, 2013;Tolfrey et al, 2008;Tolfrey et al, 2012) and more recently to attenuate postprandial endothelial dysfunction in both adults and adolescents (Gill et al, 2004;Sedgwick et al, 2013;Tyldum et al, 2009). …”

“…Barrett and colleagues reported that 90 minutes of games type activity (15 m sprints interspersed with walking, jogging and faster running) reduced postprandial triacylglycerol concentrations in adolescent boys (Barrett et al, 2007) and men (Barrett et al, 2006). It is not possible from these previous studies to establish what the effect of the short sprints alone was on the postprandial triacylglycerol concentrations.…”

Acute Exercise and Postprandial Lipemia in Young People

“…A critical feature of the two-day model is that the exercise intervention precedes the first blood sample by 12 to 18 hours (Table 1). This is because lipoprotein lipase (LPL) activity appears to peak in this period after exercise (71) , it is likely the energy expenditure was lower than that reported in other studies in young people adopting longer and less intense exercise interventions (3,41,42,70,78,80,81), suggesting that exercise intensity is a key factor influencing postprandial TAG metabolism in young people. Importantly, the exercise protocol was well tolerated by the boys in this study, and recent evidence suggests that pre-pubertal boys prefer moderate intensity exercise interspersed with short bursts of high intensity effort compared with continuous moderate intensity exercise alone (9).…”

“…Nine studies have investigated the effect of acute exercise on postprandial lipemia in young people using the criteria adopted for this summary (3,41,42,69,70,76,78,80,81). A summary of these studies is presented in Thus, an exercise-induced deficit is efficacious, but a closer examination of the exercise characteristics might be more enlightening and will be used to compare and contrast the main outcomes with the adult-based literature appraised above.…”