Kubo Toshihide, Suzuki Kaoru, Mimura Yukari, Furujo Mahoko, Shiraga Hiroshi, Kanadani Tomohisa, Koyama Teruhisa, Shimizu Junya, Kimura Takehide, Ogura Kazuo, Mori Shigehiro
Department of Pediatrics, National Hospital Organization Okayama Medical Center, Naka-Ku, Okayama 701-1192, Japan.
Asia Pac J Clin Nutr. 2010;19(4):594-601.
To clarify the growth pattern of body composition by body part for the management of childhood obesity, we measured body fat and muscle using BIA (bioelectrical impedance analysis) in 685 Japanese elementary schoolchildren (aged 6-11 years). The growth patterns of percentage body fat (%BF), fat mass (FM), and muscle mass (MM) were examined throughout the whole body and in various body parts. The %BF of the whole body was greater in females than in males, and this difference widened with age. The %BF, FM, and MM in each body part showed similar growth patterns and gender differences to those of the whole body. The mean %BF of the left limbs was higher than that of the right limbs at all age groups. BMI was strongly correlated with %BF in both sexes. In conclusion, the compositions of all body parts change similarly with age, and gender differences are also similar in childhood. The effect of one's dominant arm on body composition is seen at a young age. The accumulation of body composition data according to body part is indispensable for understanding childhood body composition and managing obesity.
为了明确身体各部位的身体成分生长模式，以管理儿童肥胖问题，我们对685名日本小学生（6 - 11岁）使用生物电阻抗分析（BIA）测量了身体脂肪和肌肉。研究了全身以及各个身体部位的体脂百分比（%BF）、脂肪量（FM）和肌肉量（MM）的生长模式。全身的%BF女性高于男性，且这种差异随年龄增大而扩大。每个身体部位的%BF、FM和MM显示出与全身相似的生长模式和性别差异。所有年龄组左肢的平均%BF均高于右肢。BMI在两性中均与%BF密切相关。总之，所有身体部位的成分随年龄变化相似，儿童期的性别差异也相似。优势手臂对身体成分的影响在幼年时就可见。根据身体部位积累身体成分数据对于了解儿童身体成分和管理肥胖至关重要。
