Effect of exercise training intensity on abdominal visceral fat and body composition.
Effect of exercise training intensity on abdominal visceral fat and body composition.
复制标题
DOI：
10.1249/mss.0b013e3181801d40
复制
发表时间：
2008-11
影响因子：
4.1
通讯作者：
Weltman A
中科院分区：
文献类型：
--
作者：
Irving BA;Davis CK;Brock DW;Weltman JY;Swift D;Barrett EJ;Gaesser GA;Weltman A
代谢综合征是一组复杂的代谢缺陷，与缺乏运动、腹部肥胖和衰老有关。探讨运动训练强度对代谢综合征肥胖女性腹部内脏脂肪（AVF）和身体成分的影响。27名中年肥胖女性（平均值±标准差;年龄：51 ± 9岁，体重指数：34 ± 6 kg/m2）完成了三个16周有氧运动干预措施之一：（i）无运动训练（对照）：7名参与者保持其现有的身体活动水平，（ii）低强度运动训练（LIET）：高强度运动训练（HIET）：9名受试者每周运动3天，运动强度> LT，每周运动2天，运动时间以维持热量消耗（400 kcal·session-1）。在L4-L5椎间隙和大腿中部获得的单层计算机断层扫描用于确定腹部脂肪和大腿肌肉横截面积。通过空气置换体积描记法评估体脂百分比。HIET显著降低了腹部总脂肪（p<0.001）、腹部皮下脂肪（p=0.034）和AVF（p=0.010）。在对照或LIET条件下，未观察到任何这些参数的显著变化。目前的数据表明，身体成分的变化受运动训练强度的影响，HIET更有效地减少总腹部脂肪，皮下腹部脂肪和AVF的肥胖女性代谢综合征。
The metabolic syndrome is a complex clustering of metabolic defects associated with physical inactivity, abdominal adiposity, and aging. To examine the effects of exercise training intensity on abdominal visceral fat (AVF) and body composition in obese women with the metabolic syndrome. Twenty-seven middle-aged, obese women (mean ± SD; age: 51 ± 9 years and body mass index: 34 ± 6 kg/m2) with the metabolic syndrome completed one-of-three 16-week aerobic exercise interventions: (i) No Exercise Training (Control): Seven participants maintained their existing levels of physical activity, (ii) Low-Intensity Exercise Training (LIET): eleven participants exercised 5 days · week-1 at an intensity ≤ lactate threshold (LT) (iii) High-Intensity Exercise Training (HIET): nine participants exercised 3 days · week-1 at an intensity > LT and 2 days ·week-1 ≤ LT. Exercise time was adjusted to maintain caloric expenditure (400 kcal·session-1). Single-slice computed tomography scans obtained at the L4-L5 disc-space and mid-thigh were used to determine abdominal fat and thigh muscle cross-sectional areas. Percent body fat was assessed by air displacement plethysmography. HIET significantly reduced total abdominal fat (p<0.001), abdominal subcutaneous fat (p=0.034) and AVF (p=0.010). There were no significant changes observed in any of these parameters within the Control or LIET conditions. The present data indicate that body composition changes are affected by intensity of exercise training with HIET more effective for reducing total abdominal fat, subcutaneous abdominal fat and AVF in obese women with the metabolic syndrome.