The clinical measurement of skinfold thickness is used as a nutritional index of estimating the body surface fat and calorie reserves. The limb muscle size can be measured by taking the limb circumference and the skinfold. There were 344 newborn infants to be recorded in arm and leg circumferences combined with the skinfold including triceps, subscapular region, suprailiac region and thigh. The limb circumference and skinfold thickness were increased with the increasing gestational age and body weight. But the skinfold thickness in both male and female declined after 40 weeks of gestation. Female infants had a greater skinfold thickness than males, but there were no true difference between those of males and females. The circumference of upper and lower limbs were also almost equal between males and females. The value of skin fold of thigh was higher than that of other sites and had positive correlation with body weight (γ=0.65, P<0.05). The skinfold of heavy weight newborn infants was thicker than that of normal ones. But the newborn infants of intrauterine growth retardation had thinner skinfold than normal ones.
The clinical measurement of skinfold thickness is used as a nutritional index of estimating the body surface fat and calorie reserves. The limb muscle size can be measured by taking the limb circumference and the skinfold. There were 344 newborn infants to be recorded in arm and leg circumferences combined with the skinfold including triceps, subscapular region, suprailiac region and thigh. The limb circumference and skinfold thickness were increased with the increasing gestational age and body weight. But the skinfold thickness in both male and female declined after 40 weeks of gestation. Female infants had a greater skinfold thickness than males, but there were no true difference between those of males and females. The circumference of upper and lower limbs were also almost equal between males and females. The value of skin fold of thigh was higher than that of other sites and had positive correlation with body weight (γ=0.65, P<0.05). The skinfold of heavy weight newborn infants was thicker than that of normal ones. But the newborn infants of intrauterine growth retardation had thinner skinfold than normal ones.