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| 军事训练对青年男性军人股骨近端几何结构的影响 |
| Effect of military training on bone geometry of the proximal femur in young military males |
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| DOI：10.3969/j.issn.1006-7108.2016.06.002 |
| 中文关键词: 军人 骨密度 骨几何结构 运动 |
| 英文关键词:Military Bone mineral density Bone geometry Exercise |
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| 中文摘要: |
| 目的 通过比较军人与非军人青年男性骨密度和髋关节几何结构的异同，探讨运动对处于骨量缓慢增长期的青年男性骨密度及骨力学结构的影响。方法 回顾性纳入符合研究条件的60名青年男性军人和60名普通青年男性作为受试者。采用美国HOLOGIC双能X线骨密度仪（Dual energy X-ray absorptiometry，DXA）对受试者的腰椎和左髋关节骨密度进行检测，在分析骨密度的同时，利用髋关节结构分析(Hip strength analysis，HSA)软件在DXA扫描图像基础上得出股骨近端几何力学参数。结果 军人组腰椎总体BMD、股骨颈BMD 较普通青年对照组分别增加2.97% 和6.45%，但两组腰椎骨密度差异无统计学意义（P＞0.05)，两组间股骨颈骨密度差异有统计学意义（P＜0.05）；股骨颈几何力学参数比较结果显示：军人组FN-CSA、FN-CT 大于普通青年对照组(P＜0. 05)，而FN-BR明显低于普通青年对照组(P＜0. 01)，差异均有统计学意义，两组CSMI、SM相关参数间差异均无统计学意义（P＞0.05)。结论 运动可提高骨量缓慢增长期的骨密度值，同时可改善股骨颈近端骨几何结构，提高骨强度。即骨量增加与髋关节结构重塑同步，共同提高髋部骨强度。 |
| 英文摘要: |
| Objective To investigate the effect of exercise on bone mineral density (BMD) and hip bone geometry in mild growth stage of males by comparing the difference of BMD and geometry of the hip between military and non-military young males. Methods Sixty military and 60 non-military young males were included in this retrospective study. BMD of the lumbar spine (L1-L4) and the left femoral neck was measured with dual energy X-ray absorptiometry (DXA). Hip structural analysis was performed using a hip strength analysis software (HSA) on the DXA scans. Results The BMD of the total lumbar spine and the femoral neck in military group increased by 2.97% and 6.45%, respectively, comparing to those in non-military group. The difference of BMD was not statistically significant in the lumbar spine (P>0.05), but was statistically significant in the femoral neck between the two groups (P<0.05). The comparison results of femoral neck geometric parameters showed that FN-CSA and FN-CT in the military group were larger than those in the non-military group (P<0.05), but FN-BR was significantly lower than that in the non-military group (P<0.01). CSMI and SM showed no significant difference between the two groups (P>0.05). Conclusion Exercise improves bone strength by increasing BMD and improving bone geometry of the proximal femur. Increased bone mass and hip bone geometry structure remodeling together improve the bone strength. |
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