【摘要】：目的了解粵北農(nóng)村貧困山區(qū)7~16歲學(xué)生骨強(qiáng)度發(fā)育狀況,為兒童青少年骨質(zhì)疏松的預(yù)防提供科學(xué)依據(jù)。方法采用分層整群抽樣方法,選取粵北農(nóng)村貧困山區(qū)7~16歲的951名學(xué)生進(jìn)行超聲骨強(qiáng)度測(cè)試。結(jié)果男、女生橈骨中段超聲傳播速度值(SOS)都隨著年齡的增長(zhǎng)而增加,男生在14~16歲期間增長(zhǎng)速度較快(3 784.25~3 891.21 m/s),其中16歲組15歲組14歲組13歲組,兩組間比較差異均有統(tǒng)計(jì)學(xué)意義(P值均0.05)。女生SOS值在12~15歲期間增長(zhǎng)速度較快(3 730.81~3908.21 m/s),15歲以后增長(zhǎng)緩慢,其中15歲組14歲組13歲組12歲組(P值均0.05)。男生在7~8歲期間,SOS值高于同年齡段的女生;在13~15歲期間,女生SOS值均高于同年齡段男生(P值均0.05)。學(xué)生整體骨強(qiáng)度水平較差,骨強(qiáng)度處于正常水平的男女生比例分別為56.31%和56.20%,不足的比例分別為11.99%和9.50%;男生14歲時(shí)骨強(qiáng)度異常構(gòu)成比最高(29.20%),女生13歲時(shí)骨強(qiáng)度異常構(gòu)成比最高(22.73%);不同性別骨強(qiáng)度評(píng)價(jià)構(gòu)成比較差異無統(tǒng)計(jì)學(xué)意義(P0.05)。結(jié)論兒童青少年骨強(qiáng)度隨著年齡的增長(zhǎng)而增加,不同年齡段骨量發(fā)育速度不同;農(nóng)村貧困山區(qū)學(xué)生整體骨強(qiáng)度評(píng)價(jià)水平不高并且無性別差異,要時(shí)刻關(guān)注兒童青少年尤其是處于13~14歲學(xué)生骨強(qiáng)度的發(fā)育狀況。
[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.
【作者單位】： 廣州體育學(xué)院運(yùn)動(dòng)與健康系;
【基金】：2014年廣東省省級(jí)科技計(jì)劃項(xiàng)目資助(2014A020220010) 2013年教育部人文社會(huì)科學(xué)課題資助(13yjc890050) 廣東省教育廳委托項(xiàng)目(101-215001)
【分類號(hào)】：R179

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