粤北农村贫困山区7～16岁学生骨强度发育状况

发布时间：2019-04-02 07:20

【摘要】：目的了解粤北农村贫困山区7~16岁学生骨强度发育状况,为儿童青少年骨质疏松的预防提供科学依据。方法采用分层整群抽样方法,选取粤北农村贫困山区7~16岁的951名学生进行超声骨强度测试。结果男、女生桡骨中段超声传播速度值(SOS)都随着年龄的增长而增加,男生在14~16岁期间增长速度较快(3 784.25~3 891.21 m/s),其中16岁组15岁组14岁组13岁组,两组间比较差异均有统计学意义(P值均0.05)。女生SOS值在12~15岁期间增长速度较快(3 730.81~3908.21 m/s),15岁以后增长缓慢,其中15岁组14岁组13岁组12岁组(P值均0.05)。男生在7~8岁期间,SOS值高于同年龄段的女生;在13~15岁期间,女生SOS值均高于同年龄段男生(P值均0.05)。学生整体骨强度水平较差,骨强度处于正常水平的男女生比例分别为56.31%和56.20%,不足的比例分别为11.99%和9.50%;男生14岁时骨强度异常构成比最高(29.20%),女生13岁时骨强度异常构成比最高(22.73%);不同性别骨强度评价构成比较差异无统计学意义(P0.05)。结论儿童青少年骨强度随着年龄的增长而增加,不同年龄段骨量发育速度不同;农村贫困山区学生整体骨强度评价水平不高并且无性别差异,要时刻关注儿童青少年尤其是处于13~14岁学生骨强度的发育状况。
[Abstract]:Objective to investigate the bone strength development of 7-16-year-old students in poverty-stricken rural areas of northern Guangdong, and to provide scientific basis for prevention of osteoporosis in children and adolescents. Methods using stratified cluster sampling method, 951 students aged 7-16 years old in rural poverty-stricken mountainous areas of northern Guangdong were selected for ultrasonic bone strength test. Results the value of ultrasonic transmission velocity (SOS) in the middle part of radius increased with the increase of age in both males and females. During the period of 14 ~ 16 years old, boys grew faster (3 784.25 ~ 3 891.21 m / s), among them, 16 years old, 15 years old, 14 years old, 13 years old. There was significant difference between the two groups (P < 0.05). The SOS value of girls increased rapidly during the period of 12 ~ 15 years old (3 730.81 ~ 3908.21 m / s), and increased slowly after the age of 15 years. Among them, the age group of 15 years old was 14 years old, the age group was 13 years old, and the age group was 12 years old (P < 0.05). During the period of 7-8 years old, the SOS value of boys was higher than that of girls in the same age group, and that of girls was higher than that of boys of the same age group during the period of 13-15 years old (P < 0.05). The percentage of male and female students with normal bone strength was 56.31% and 56.20% respectively, and the proportion of underage was 11.99% and 9.50% respectively. The ratio of abnormal bone strength was the highest in boys (29.20%) at age 14 and the highest in girls (22.73%) at the age of 13. There was no significant difference in the composition of bone strength between different sexes (P0.05). Conclusion the bone strength of children and adolescents increases with the increase of age, and the speed of bone mass development in different age groups is different. The overall bone strength evaluation level of poor rural students in mountainous areas is not high and there is no gender difference. We should always pay attention to the development of bone strength in children and adolescents, especially in 13-14-year-old students.
【作者单位】：广州体育学院运动与健康系;
【基金】：2014年广东省省级科技计划项目资助(2014A020220010) 2013年教育部人文社会科学课题资助(13yjc890050) 广东省教育厅委托项目(101-215001)
【分类号】：R179

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