Department of Health and Human Performance, Texas State University, San Marcos, Texas; and.
College of Health Sciences, University of Memphis, Memphis, Tennessee.
J Strength Cond Res. 2022 Aug 1;36(8):2139-2146. doi: 10.1519/JSC.0000000000003831. Epub 2020 Oct 1.
McAllister, MJ, Steadman, KS, Renteria, LI, Case, MJ, Butawan, MB, Bloomer, RJ, and McCurdy, KW. Acute resistance exercise reduces postprandial lipemia and oxidative stress in resistance-trained men. J Strength Cond Res 36(8): 2139-2146, 2022-Acute ingestion of a high-fat meal (HFM) results in significant increases in postprandial triacylglycerols (TAG) and markers of oxidative stress (OS). Combined aerobic and resistance exercise can attenuate postprandial lipemia; however, it is not clear if acute resistance exercise alone can reduce postprandial OS. The purpose of this study was to determine if acute resistance exercise can attenuate postprandial OS and to compare the effects of moderate versus high-intensity resistance exercise in this regard. Nine ( n = 9) moderately resistance-trained individuals completed 3 testing conditions in a randomized order as follows: (a) rest (no exercise), (b) moderate intensity (3 sets of 10 repetitions at 68% 1 repetition maximum [RM]), and (c) high-intensity resistance exercise (4 sets of 6 repetitions at 85% 1RM). Exercises included barbell back squat, bench press, straight leg deadlift, lat pull-down, upright row, and sit-ups. A HFM was ingested 12 hours after each condition. Blood samples were collected immediately before as well as 2 and 4 hours after ingestion and analyzed for TAG, cholesterol (CHOL), insulin, malondialdehyde (MDA), total nitrate/nitrite (NOx), glutathione (GSH), and advanced oxidation protein products (AOPP). When comparing 4 hour area under curve (AUC) data between conditions, AOPP demonstrated a significantly lower AUC after the moderate-intensity condition compared with resting condition. In addition, resistance exercise resulted in significantly higher plasma NOx concentrations as well as lower TAG and CHOL concentrations after HFM ingestion. Resistance exercise also prevented a decline in GSH that was induced by the HFM. These results demonstrate that acute resistance exercise can attenuate postprandial OS.
麦卡利斯特，MJ，斯特德曼，KS，雷蒂纳，LI，凯斯，MJ，布塔万，MB，布鲁默，RJ，和麦卡迪，KW。急性抗阻运动可降低抗阻训练男性的餐后血脂和氧化应激。J 力量与体能研究 36(8)：2139-2146，2022-急性摄入高脂肪餐（HFM）会导致餐后三酰甘油（TAG）和氧化应激（OS）标志物显著增加。结合有氧运动和抗阻运动可以减轻餐后血脂；然而，尚不清楚单独进行急性抗阻运动是否可以降低餐后 OS。本研究的目的是确定急性抗阻运动是否可以减轻餐后 OS，并比较中等强度与高强度抗阻运动在这方面的效果。9 名（n=9）中度抗阻训练个体以随机顺序完成 3 种测试条件，如下所示：（a）休息（无运动），（b）中等强度（3 组，每组 10 次，重复 68%1 次最大重复次数[RM]），和（c）高强度抗阻运动（4 组，每组 6 次，重复 85%1RM）。运动包括杠铃深蹲、卧推、直腿硬拉、下拉、直立划船和仰卧起坐。每种条件后 12 小时摄入 HFM。在摄入前、摄入后 2 小时和 4 小时采集血样，并分析 TAG、胆固醇（CHOL）、胰岛素、丙二醛（MDA）、总硝酸盐/亚硝酸盐（NOx）、谷胱甘肽（GSH）和晚期氧化蛋白产物（AOPP）。在比较条件之间 4 小时 AUC 数据时，与休息条件相比，中等强度条件下 AOPP 的 AUC 显著降低。此外，抗阻运动后，HFM 摄入后血浆 NOx 浓度显著升高，TAG 和 CHOL 浓度显著降低。抗阻运动还防止了 HFM 引起的 GSH 下降。这些结果表明，急性抗阻运动可以减轻餐后 OS。
