Department of Nutrition and Food Sciences, Physiology and Toxicology, University of Navarra, Pamplona, Spain.
Ann Nutr Metab. 2012;61(4):296-304. doi: 10.1159/000342467. Epub 2012 Dec 3.
BACKGROUND/AIMS: A weight-loss diet alone or combined with a progressive resistance training program induced different adaptations on cardiometabolic risk, i.e. regional changes in visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) volume distribution patterns. We hypothesized that a heterogeneous adipose tissue metabolism may exist between visceral fat at different discal levels.
Thirty-four obese women, aged 40-60 years, were randomized to three groups: a control group (n = 9), a diet group (WL; n = 12) with a caloric restriction of 500 kcal/day during 16 weeks, or a diet-plus-resistance-training group (WL+RT; n = 13) with the same caloric restriction and a 16-week resistance training of 2 sessions per week.
The association pattern between abdominal fat depots and glucose metabolism variables showed a change from the L4-L5 region (preintervention) to VAT L2-L3 and SAT L2-L3 in the WL and WL+RT groups, respectively. It is noteworthy that accumulation of fat in the midthigh was not characterized by a more favorable lipid profile or glucose metabolism.
Our results reinforce the importance of considering L2-L3 images to predict insulin resistance after a weight-loss diet, alone or combined with resistance training.
背景/目的:单独的减肥饮食或结合渐进式抗阻训练计划会引起心脏代谢风险的不同适应性,即内脏脂肪组织(VAT)和皮下脂肪组织(SAT)体积分布模式的区域变化。我们假设内脏脂肪在不同椎间盘水平之间可能存在异质的脂肪代谢。
34 名年龄在 40-60 岁的肥胖女性随机分为三组:对照组(n = 9)、减肥饮食组(WL;n = 12),在 16 周内每天热量限制 500 千卡,或减肥饮食加抗阻训练组(WL+RT;n = 13),同样进行 16 周的热量限制,每周进行 2 次抗阻训练。
腹部脂肪沉积与葡萄糖代谢变量之间的关联模式显示,WL 和 WL+RT 组分别从 L4-L5 区域(干预前)转变为 VAT L2-L3 和 SAT L2-L3。值得注意的是,大腿中部脂肪堆积的特征不是更有利的血脂谱或葡萄糖代谢。
我们的结果强调了在单独或结合抗阻训练进行减肥饮食后,考虑 L2-L3 图像来预测胰岛素抵抗的重要性。