Lipoprotein subfraction changes after continuous or intermittent exercise training

Medicine and Science in Sports and Exercise
Thomas S AltenaTom R Thomas

Abstract

This study compared total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) and their respective subfractions after completing 4 wk of either intermittent (INT-EX) or continuous (CON-EX) aerobic exercise training (TRAIN). Untrained males (N = 7) and females (N = 11) completed 4 wk of TRAIN of supervised treadmill jogging occurring 5 d.wk(-1) for 30 min per session at 60% VO2max (75% HRmax). CON-EX was a single 30-min bout. INT-EX consisted of three 10-min bouts separated by 20 min of seated rest. Pre- and post-TRAIN fasting plasma samples were collected after subjects had followed 48 h of activity restriction and a 24-h repeated diet including a 12-h dietary fast. Postprandial lipemia was measured for 8 h following a standardized high-fat meal. Fasting triglycerides and very LDL-C were not affected by TRAIN, and TRAIN did not change postprandial area under the curve or peak in either group. With groups combined, TRAIN significantly decreased TC, total LDL-C, and the TC:HDL ratio, and increased HDL-C subfraction 2 and LDL mean particle size. Total intermediate-density lipoprotein cholesterol remained unchanged at post-TRAIN, and was not different between groups. To pr...Continue Reading

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Citations

Jun 10, 2011·Clinics·Aparecido Pimentel FerreiraNancí Maria de França
May 19, 2007·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Tom R ThomasR Scott Rector
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