Effect of physical training on total and visceral fat in obese children
Effect of physical training on total and visceral fat in obese children
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DOI：
10.1097/00005768-199901000-00022
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发表时间：
1999-01-01
期刊：
影响因子：
--
通讯作者：
Thompson, W
中科院分区：
文献类型：
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作者：
Owens, S;Gutin, B;Thompson, W
目的：具有高水平的全身脂肪量（TFM）和内脏脂肪组织（VAT）的儿童具有升高的冠状动脉疾病和非胰岛素依赖型糖尿病的某些风险因素水平。我们检验了一个假设，即在没有饮食干预的情况下，控制性体育训练对肥胖儿童的VAT和体脂百分比（%BF）有有利的影响。方法：74名7-11岁的肥胖儿童自愿接受随机分配到体育锻炼组或对照组。在干预前后4个月，测量VAT，TFM，%BF，每日体力活动和心血管健康。干预包括4个月的控制性体育训练，每周5天，每次40分钟，平均心率（HR）为157次/分（-1）。每次训练的估计能量消耗（EE）为925 +/- 201 kJ。结果如下：与对照组相比，运动组的%BF显著下降（Delta = -2.2%）（P < 0.01），TFM（Delta = -3.1%）（P < 0.01），腹部皮下脂肪（Delta = -16.1%）（P < 0.05），无脂体重（Delta = +6.1%）（P < 0.05）和中度至重度体力活动（Delta = +14.1%）（P < 0.05）显著增加。运动组VAT增加（Delta = +0.5%）显著低于对照组（Delta = +8.1%）（P < 0.05）。结论：这项研究表明，在体育训练期间，肥胖儿童：1）能够在4个月内参加大量的高强度体育训练; 2）与不运动的对照组相比，累积的VAT显著减少; 3）在总体和局部身体组成方面经历了其他有益的变化。
Purpose: Children with high levels of total body fat mass (TFM) and visceral adipose tissue (VAT) have elevated levels of certain risk factors for coronary artery disease and non-insulin-dependent diabetes mellitus. We tested the hypothesis that controlled physical training, without dietary intervention, would have a favorable impact on VAT and percent body fat (%BF) in obese children. Methods: A volunteer sample of 74 obese children, 7-11 yr of age, accepted random assignment to physical training or control groups. Before and after 4 months of intervention, measurements were obtained for VAT, TFM, %BF, daily physical activity, and cardiovascular fitness. The intervention involved 4 months of controlled physical training 5 d.wk(-1), 40 min per session, at a mean heart rate (HR) of 157 beats.min(-1). The estimated energy expenditure (EE) per training session was 925 +/- 201 kJ. Results: Compared with the control group, the physical training group declined significantly in %BF (Delta = -2.2%) (P < 0.01), TFM (Delta = -3.1%) (P < 0.01), and subcutaneous abdominal adipose tissue (Delta = -16.1%) (P < 0.05), and increased significantly in fat-free mass (Delta = +6.1%) (P < 0.05) and moderate-to-very hard physical activity (Delta = +14.1%) (P < 0.05). The increase in VAT was significantly less in the physical training group (Delta = +0.5%) as compared with that in the control group (Delta = +8.1%) (P < 0.05). Conclusions: This study showed that during physical training obese children: 1) were capable of participating in a substantial amount of high intensity physical training over a 4-month period; 2) accumulated significantly less VAT as compared with nonexercising controls; and 3) experienced other beneficial changes in total and regional body composition.