The effects of aerobic exercise on postprandial lipoprotein metabolism

在健康但久坐不动的年轻女性中，餐后而不是餐前，适度（50% VO2max， 30分钟）有氧运动减少了肠道源性脂蛋白的数量，并改善了外源性脂蛋白代谢，这表明餐后运动比餐前运动更有效地改善餐后脂蛋白代谢。虽然餐后有氧运动减轻了同时摄入葡萄糖和脂肪后与胰岛素“节约”相关的血糖峰值，但运动对脂肪代谢的影响是短暂的，在早期阶段增强了肠道脂蛋白的分泌。同时摄入葡萄糖和脂肪模拟了摄入饼干后的餐后代谢。此外，四周的适度有氧运动训练改善了久坐但其他方面健康的年轻女性的抗氧化状态和脂蛋白代谢，特别是餐后代谢。

In healthy but sedentary young women, postprandial, but not shortly preprandial, moderate(50% VO2max, 30 min) aerobic exercise reduced the number of intestinally derived lipoproteins and improved the exogenous lipoprotein metabolism, suggesting that postprandial exercise is more effective for improving the postprandial lipoprotein metabolism than shortly preprandial exercise. Although postprandial aerobic exercise alleviated the glycemic peak associated with insulin' sparing' after the simultaneous ingestion of glucose and fat, the effect of exercise on fat metabolism was transient, enhancing the secretion of intestinal lipoproteins at an early phase. Simultaneous ingestion of glucose and fat mimicked the postprandial metabolism after the ingestion of cookies. Moreover, four weeks of moderate aerobic exercise training improved antioxidant status and lipoprotein metabolism, particularly postprandial metabolism, in sedentary but otherwise healthy young women.