【摘要】 本工作测量了北京市252名9～17岁健康男性中小学生的上臂围、三头肌皮褶厚度,计算出上臂肌肉直径、面积及脂肪面积,并进行24小时尿肌酐值测定。9～17岁男生的上臂肌肉面积均值分别为:1738.6,1867.2,2120.6,2466.1,2876.8,3367.6,3524.1,4118.1及4418.2mm~2。各年龄组24小时尿肌酐含量与上臂肌肉面积的比值均在0.32左右。尿肌酐值与上臂肌肉直径和面积高度相关。此方法可应用于儿童青少年的生长发育研究。更多还原

【Abstract】 Arm circumference and triceps skin fold were rneasured, and arm muscie diameter, arm muscle area and arm fat area were calculated in 252 healthy school boys 9-17 years old in Beijing. 24-hour urinary creatinine was also measured. The mean values of arm muscle area of 9-17 year-old boys are: 1738.6, 1867.3, 2120.6, 2466.1, 2876.8, 3367.6, 3524.1, 4118.1 and 4418.2 mm2 respectively. The ratios of 24-hour urinary creatinine excretion and arm muscle area of all the boys in 9 age groups Were about 0.32. There are significant correlations between urinary creatinine values and arm muscle diameter and arm muscle area. This method can be used in the research of the growth and develop-ment of children and adolescents.更多还原