比较中国肥胖和正常体重儿童青春期发育过程中身体成分的变化。
Comparison of changes in body composition during puberty development of obese and normal-weight children in China.
机构信息
Institute of Child and Adolescent Health, School of Public Health, Peking University, Beijing 100191, China.
出版信息
Biomed Environ Sci. 2009 Oct;22(5):413-8. doi: 10.1016/S0895-3988(10)60019-0.
OBJECTIVE
To compare the changes in body composition, including fat mass index (FMI) and fat free mass index (FFMI) during puberty development of obese and normal-weight children in China, and to explore the effect of age and gender on body composition.
METHODS
A total of 356 children at the age of 7-15 years were enrolled in this study. Body composition of 10 normal-weight and obese children in each age group was measured by dual-energy x-ray absorptiometry (DEXA). FFMI and FMI were calculated according to the following formula: FFMI (kg x m(-2)) = FFM(kg) / height2 (m2) and FMI (kg x m(-2)) = FM (kg) / height2 (m2).
RESULTS
The fat mass and fat free mass of obese children were significantly higher than those of normal-weight children (P < 0.05). The FMI and FFMI of obese children increased significantly with age and were higher than those of the same sex, gender, and age normal-weight children (P < 0.05).
CONCLUSION
The levels of fat mass, fat free mass, FMI, and FFMI are different in obese and normal-weight children, and gender effects are significant in boys having higher levels of these indicators than in girls. FFMI and FMI can be used as monitoring indexes in weight control of obese children.
目的
比较中国肥胖和正常体重儿童在青春期发育过程中身体成分的变化，包括脂肪质量指数（FMI）和去脂体重指数（FFMI），并探讨年龄和性别对身体成分的影响。
方法
本研究共纳入 356 名 7-15 岁的儿童。对每个年龄组的 10 名正常体重和肥胖儿童的身体成分进行双能 X 射线吸收法（DEXA）测量。根据以下公式计算 FFMI 和 FMI：FFMI（kg x m(-2)）= FFM（kg）/ height2（m2）和 FMI（kg x m(-2)）= FM（kg）/ height2（m2）。
结果
肥胖儿童的脂肪质量和去脂体重明显高于正常体重儿童（P < 0.05）。肥胖儿童的 FMI 和 FFMI 随年龄显著增加，且高于同性别、同年龄的正常体重儿童（P < 0.05）。
结论
肥胖和正常体重儿童的脂肪质量、去脂体重、FMI 和 FFMI 水平不同，且男孩的这些指标水平均高于女孩，性别影响显著。FFMI 和 FMI 可作为肥胖儿童体重控制的监测指标。
Zotero 插件