身材矮小被定义为身高低于具有相同年龄的人口的2个标准偏差,gender.本研究旨在评估身材矮小的学龄前儿童的身体成分特征。
对68名3至6岁身材矮小的学龄前儿童和68名年龄和性别相匹配的正常对照进行了人体测量和身体成分评估。高度,体重和身体成分(全身水分,蛋白质,矿物,身体脂肪量,无脂质量,软瘦质量,骨骼肌质量,测量并比较两组的骨矿物质含量)。
全身水分,蛋白质,矿物,身体脂肪量,无脂质量,软瘦质量,骨骼肌质量,身材矮小的学龄前儿童的骨矿物质含量低于对照组(P<0.05)。两组之间的体重指数和脂肪指数没有差异。身材矮小组的无脂质量指数明显低于对照组(t=2.17,P=0.03)。线性回归分析显示身高与无脂肪质量指数呈正相关[β,1.99(0.59,3.39),P=0.01],身高与体脂百分比呈负相关[β,-0.20(-0.38,-0.01),P=0.04]。上肢中无脂肪质量的比例显着降低(右,t=-2.78,左t=-2.76,P<0.05)分别为身材矮小,虽然体内脂肪分布没有。
在身材矮小的学龄前儿童中,蛋白质和骨矿物质等无脂肪含量较低,建议监测无脂质量,以便早期识别和干预。
Short stature is defined as height below 2 standard deviations of the population with the same age, gender. This study is aimed to assess the characteristics of body composition in preschool children with short stature.
Anthropometric measurements and body composition were assessed in 68 preschool children aged 3 to 6 years old with short stature and 68 normal controls matched on age and gender. Height, weight and body composition (total body water, protein, minerals, body fat mass, fat-free mass, soft lean mass, skeletal muscle mass, and bone mineral contents) in the two groups were measured and compared.
The total body water, protein, minerals, body fat mass, fat-free mass, soft lean mass, skeletal muscle mass, and bone mineral contents were lower in preschool children with short stature than controls (P < 0.05). Body mass index and fat mass index did not differ between groups. Fat-free mass index was significantly lower in short stature group than controls (t = 2.17, P = 0.03). Linear regression analysis showed that there was a positive correlation between height and fat-free mass index [β, 1.99 (0.59, 3.39), P = 0.01], a negative correlation between height and body fat percentage [β, - 0.20 (- 0.38, - 0.01), P = 0.04]. The proportions of fat-free mass in the upper limbs were significantly lower (Right,t = - 2.78,Left t = - 2.76, P < 0.05, respectively) in short stature, although body fat distribution was not.
The fat-free mass such as protein and bone minerals is lower in preschool children with short stature, suggesting the monitoring of fat-free mass for early identification and intervention.