Growth of cortical bone thickness and trabecular bone density in Japanese children,
Growth of cortical bone thickness and trabecular bone density in Japanese children,
复制标题
日本儿童皮质骨厚度和骨小梁密度的增长，
DOI：
10.1016/j.bone.2020.115669
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Uehara R
中科院分区：
文献类型：
--
作者：
Ozaki E;Matsukawa M;Mano I;Matsui D;Yoneda Y;Masumura M;Koyama T;Watanabe I;Maekawa M;Tomida S;Iwasa K;Umemura S;Kuriyama N;Uehara R
背景在年轻时获得高骨密度是预防以后生活中骨折/福尔斯的策略。因此，我们决定调查皮质厚度（CoTh）和骨小梁密度（TBD）的children.MethodsSubjects包括1314名学生（678名男孩和636名女孩），年龄在12和18岁之间的增加。生活方式的因素进行了检查与自我管理的问卷调查（睡眠时间，运动习惯，钙摄入量）。使用超声骨密度计基于CoTh和TBD评估骨生长。身高，体重和体脂百分比也measured. ResultsCoTh和TBD的增加发生在女孩早于男孩。在所有年龄段，钙的摄入量都不足，睡眠时间也短于国家睡眠基金会推荐的时间。CoTh和TBD的增加发生在身高增加之后。虽然随着年龄的增长，在两种性别的CoTh的观察，TBD增加，男孩直到17岁，女孩直到15岁。在18岁时，青年平均值大于100%的CoTh，但低于100%的TBD。多因素分析发现年龄、体重指数（BMI）和运动是CoTh的独立阳性因素，而体脂百分比是独立的阴性因素。年龄和BMI是TBD的独立的积极因素，在男女，而体脂百分比是一个积极的因素，在boys only.ConclusionsThe研究发现，CoTH和TBD随年龄而变化，并在男孩和女孩的增加不同;骨增加的相关因素也可以找到，这项研究的结果可能有助于获得高骨密度的儿童和青少年。
BackgroundThe acquisition of a high bone density at a young age is a strategy to prevent fractures/falls later in life. We therefore decided to investigate the increases in cortical thickness (CoTh) and trabecular bone density (TBD) of children.MethodsSubjects comprised 1314 students (678 boys and 636 girls) aged between 12 and 18 years. Lifestyle factors were examined with a self-administered questionnaire (sleep times, exercise habits, and calcium intake). Bone growth was assessed based on CoTh and TBD using an ultrasonic bone densitometer. Height, weight, and body fat percentage were also measured.ResultsIncreases in CoTh and TBD occurred earlier in girls than in boys. Calcium intake was not sufficient at any of the ages examined, and sleep times were shorter than those recommended by the National Sleep Foundation. Increases in CoTh and TBD occurred subsequent to increases in height. Although increases in CoTh were observed with age in both sexes, TBD increased in boys until the age of 17 years and in girls until the age of 15 years. At 18 years of age, the young adult mean value was greater than 100% for CoTh but lower than 100% for TBD. A multivariate analysis identified age, body mass index (BMI), and exercise as independent positive factors for CoTh, while body fat percentage was an independent negative factor. Age and BMI were independent positive factors for TBD in both sexes, whereas body fat percentage was a positive factor in boys only.ConclusionsThe study found that CoTH and TBD varied with age and differed in increase in boys and girls; related factors of bone increase could also be found. The results of this study may contribute to the acquisition of high bone density in children and adolescents.