黄干，廖二元，伍贤平，邓小戈.老年妇女体重指数与骨密度和骨超声传导速度的相关性研究[J].中华物理医学与康复杂志,2003,(1):。-
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| 老年妇女体重指数与骨密度和骨超声传导速度的相关性研究 |
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| DOI： |
| 中文关键词: 体重指数 骨密度 骨强度 定量超声 |
| 英文关键词: Body mass index Bone mineral density Bone strength Elderly women |
| 基金项目:湖南省科技厅科技计划重点项目（No.01SSY1004） |
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| 摘要点击次数: 1986 |
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| 中文摘要: |
| 目的研究体重指数(BMI)对老年妇女骨密度(BMD)和骨强度的影响，为骨质疏松症(OP)的预防提供科学依据。 方法采用双能X线骨密度仪和定量骨超声仪，测量319例老年妇女不同骨骼部位的BMD和胫骨超声传导速度(SOS)，并按BMI不同分为低体重组（BMI﹤20）、正常体重组（BMI= 20～24）和肥胖组（BMI﹥24）进行分析和比较。 结果除腰椎侧位外，老年妇女各部位BMD和胫骨SOS均与BMI呈正相关（r=0.267～0.446和r=0.162，P<0.001和P=0.004）；正常体重组各部位BMD和胫骨SOS均高于低体重组对应部位（P<0.05～P<0.001），而肥胖组均高于低体重组和正常体重组对应部位（P<0.001和P<0.05～P<0.001）；除腰椎侧位3组间差异无显著性外，老年妇女各部位OP的患病率：低体重组＞正常体重组＞肥胖组。 结论BMI高者可能通过雌激素和负重等作用，延缓老年妇女BMD和骨强度下降，但对腰椎侧位影响小。 |
| 英文摘要: |
| ObjectiveTo investigate the effects of body mass index (BMI) on bone mineral density (BMD) and bone strength in elderly women, and to find an effective way to prevent osteoporosis. Methods BMD at various skeletal sites and speed of sound (SOS) in the tibia were measured by dual energy X-ray absorptiometry and bone quantitative ultrasound (QUS) apparatus in 319 elderly women, who were divided into three groups according to their BMI: low weight group (BMI<20), normal weight group (BMI 20～24) and obesity group (BMI>24). Results Significant positive correlation was found between BMI and BMD at various skeletal sites except the lateral spine and between BMI and SOS of the tibia in elderly women (r=0.267～0.446 and r=0.162，P<0.001 and P=0.004, respectively ); BMD at various skeletal sites and SOS of the tibia of subjects in the normal weight group were significantly higher than those of the low weight group (P<0.05～P<0.001) , and BMD at various skeletal sites and SOS of the tibia of the obesity group were significantly higher than those of both the low weight group and normal weight group (P<0.001 and P<0.05～P<0.001, respectively); Except the lateral spine, the osteoporosis incidence at various skeletal sites was decreased in a stepwise manner in subjects of these 3 groups. Conclusion Higher level of BMI can prevent bone loss and bone strength decrease in elderly women, this may be attributed to many factors such as higher estrogen levels and greater physical stress. |
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