Figueroa-Colon R, Mayo M S, Aldridge R A, Winder T, Weinsier R L
Department of Pediatrics, Children's Hospital, University of Alabama at Birmingham, 35233, USA.
Obes Res. 1998 Sep;6(5):326-31. doi: 10.1002/j.1550-8528.1998.tb00359.x.
Changes in body composition during a weight loss program have not been described in children. We wanted to test the hypothesis that weight loss can be achieved while maintaining total body fat-free mass.
We determined body composition changes by using dual-energy X-ray absorptiometry measured at baseline and after the first 10 weeks of a multidisciplinary weight loss program. The program consisted of 10 weekly group sessions where the children were provided instruction in lifestyle modification, including diet and exercise. Program leaders included a pediatrician, psychologist, registered dietitian, and exercise instructor.
We studied 59 obese children, mean (+/-SD) age 12.8+/-2.6 years, 29% boys and 71% girls, 49% Caucasian, and 51% African American. At enrollment, the children's mean height and body mass index were 157 cm and 38.9 kg/m2, respectively. The children's dual-energy X-ray absorptiometry-derived mean at baseline and at 10 weeks and corresponding p values were: weight (94.6 kg vs. 92.3 kg, p<0.0001), total body fat mass (46.9 kg vs. 44.3 kg, p<0.0001), percentage total body fat (49.2% vs. 47.5%, p<0.0001), total trunk mass (43.0 kg vs. 41.5 kg, p<0.0001), total trunk fat (21.2 kg vs. 20.0 kg, p<0.0001), total body fat-free mass (47.6 kg vs. 47.9 kg, p=0.33), total body bone mass (2.7 kg vs. 2.7 kg, p=0.99), and total body bone mineral density (1.14 g/cm2 vs. 1.15 g/cm2, p=0.0119). The children's race, gender, or Tanner stage did not affect these changes.
Decreases in total body fat mass was achieved, and total body fat-free mass was maintained among boy and girl Caucasian and African American children participating in this lifestyle modification weight loss program.
儿童减肥项目期间身体成分的变化尚无相关描述。我们想要验证这一假设，即可以在保持总体无脂肪体重的同时实现体重减轻。
我们通过双能X线吸收法测定身体成分变化，在多学科减肥项目的基线期及前10周结束后进行测量。该项目包括10次每周一次的小组课程，在此期间向儿童提供生活方式改变方面的指导，包括饮食和运动。项目负责人包括一名儿科医生、一名心理学家、一名注册营养师和一名运动教练。
我们研究了59名肥胖儿童，平均（±标准差）年龄12.8±2.6岁，男孩占29%，女孩占71%，49%为白种人，51%为非裔美国人。入组时，儿童的平均身高和体重指数分别为157厘米和38.9千克/平方米。儿童双能X线吸收法得出的基线期及10周时的平均值及相应p值如下：体重（94.6千克对92.3千克，p<0.0001）、总体脂肪量（46.9千克对44.3千克，p<0.0001）、总体脂肪百分比（49.2%对47.5%，p<0.0001）、总躯干质量（43.0千克对41.5千克，p<0.0001）、总躯干脂肪（21.2千克对20.0千克，p<0.0001）、总体无脂肪体重（47.6千克对47.9千克，p=0.33）、总体骨量（2.7千克对2.7千克，p=0.99）以及总体骨矿物质密度（1.14克/平方厘米对1.15克/平方厘米，p=0.0119）。儿童的种族、性别或坦纳分期并未影响这些变化。
参与这种生活方式改变减肥项目的白种人和非裔美国儿童男孩和女孩均实现了总体脂肪量的减少，且保持了总体无脂肪体重。
