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为了解健康青少年骨矿物质含量和确定正常值范围,本文以武汉地区幼儿园、中小学校、技校学生作整群调查对象,对3555名5～19岁青少年进行了骨矿物质含量硷测。测定部位为主力臂桡骨中下1/3处和远端15%处,使用国产 FT-647型单光子骨密度仪。结果显示:(1)青少年骨矿含量男性高于女性。(2)骨矿物质含量呈增龄性增加,增加的速度与年龄、性别、发育期有关,12岁前,两性增加均缓慢,12岁以后男性增加较女性快。(3)青少年骨矿物质含量与身高、体重、年龄呈正相关。根据以上结果,在制订青少年骨矿物质含量正常值时应以性别、每岁龄分组来确定正常值范围。骨矿物质低为异常,故只需计算 P_s 值,按此标准,调查中发现男、女性不同部位骨矿物质含量异常的人数为3.8%～4.99%。由此可见,青春期骨矿物质含量的检测对保护青少年的发育和健康至关重要,同时还有利于预防各年龄原发性和继发性骨质疏松症的发生。
In order to understand the bone mineral content of healthy adolescents and to determine the normal range, this article conducted a cluster investigation of kindergarten, primary and secondary schools and technical school students in Wuhan, and conducted an alkaline measurement of bone mineral content in 3555 adolescents aged 5 to 19 years. Determination of the main part of the arm radial radius 1/3 and 15% at the distal end, the use of domestic FT-647 single-photon bone density meter. The results showed that: (1) young boys bone content than men. (2) The content of bone mineral increased with age. The rate of increase was related to age, sex and developmental period. The increase of both sexes was slow before the age of 12, and the male increased faster than the female after 12 years old. (3) The bone mineral content of adolescents was positively correlated with height, weight and age. Based on the above results, in the development of normal bone mineral content in young people should be gender, age grouping to determine the normal range. According to this standard, the number of abnormal bone mineral content in different parts of men and women was 3.8% -4.99%. Thus, the detection of adolescent bone mineral content is crucial for the protection of adolescent development and health, but also conducive to the prevention of primary and secondary osteoporosis of all ages.