847 Superior Post-prandial Triglyceride Clearance Is Not Reversed By Two Weeks of Detraining in Endurance Trained Runners

Postprandial lipemia in endurance-trained people during a short interruption to training

“…Patsch et al (28) present data for one well-trained man who was forced to cease training for surgery; 4 wk later, postprandial lipemia was markedly increased. In contrast, two other studies report no change with 2-3 wk of detraining in groups of 8 and 11 runners (23,40). One reason for these apparently conflicting findings may be the timing of measurements in relation to the last exercise session and so to changes in LPL activity.…”

“…One reason for these apparently conflicting findings may be the timing of measurements in relation to the last exercise session and so to changes in LPL activity. Verstraete et al (40) do not give any information on this. In the study by Mankowitz and colleagues (23), measurements in the trained state were made Ն20 h after exercise.…”

“…In trained individuals, muscle capillary density remains high for at least 12 wk when training stops (8), and, if muscle capillarization is closely coupled to postprandial lipemia, there should be no change in lipemia during the early weeks of detraining. Two studies (23,40) provide support for this proposition; they report that the plasma TAG response to a fatty meal in athletes was not changed after 2-3 wk of detraining.…”