Upper-limb bone mineral density of female collegiate gymnasts versus controls.
Upper-limb bone mineral density of female collegiate gymnasts versus controls.
复制标题
女大学体操运动员与对照组的上肢骨矿物质密度。
DOI：
10.1097/00005768-200211000-00021
复制
发表时间：
2002
影响因子：
4.1
通讯作者：
M. Van Loan
中科院分区：
文献类型：
--
作者：
Kerry Proctor;W. C. Adams;J. D. Shaffrath;M. Van Loan
目的
我们检查了女大学体操运动员双臂的双侧骨密度（BMD），以评估高冲击负荷力与日常活动对骨可塑性的相对贡献。
方法
25名女大学生体操运动员和25名对照进行了研究。通过双能X线骨密度仪评估腰椎、股骨近端和全身的BMD。上肢BMD通过全身扫描的定制分析来确定，以单独检查手臂。
结果
体操运动员各部位骨密度均显著高于对照组（P < 0.0001）。体操运动员的全身骨密度高出8%（1.270 +/- 0.078 vs 1.175 +/- 0.073 g x cm（-2）），腰椎差异为18-19%（1.427 +/- 0.144 vs 1.212 +/- 0.106 g x cm（-2），右侧股骨近端（1.298 +/- 0.101 vs 1.100 +/- 0.129 g x cm（-2））和左侧股骨近端（1.293 +/- 0.111 vs 1.104 +/- 0.133 g x cm（-2））。体操运动员的臂骨密度高17%，优势臂（1.013 + 0.067 vs 0.875 + 0.066 g x cm（-2））和非优势臂（1.002 + 0.060 vs 0.849 + 0.062 g x cm（-2））的值均较高。组内比较显示，对照组优势臂的BMD显著（P < 0.0001）更大，但体操运动员的臂没有侧对侧差异。
结论
上肢BMD遵循体操运动员和对照组的使用模式，表明体操训练对手臂施加的力量增强了BMD，并且没有导致双边差异。这些发现说明了体操训练和全身BMD增加之间的关联，表明在体操运动员中观察到的高BMD值主要是由于活动本身，而不是选择偏差。
PURPOSE
We examined bilateral bone mineral density (BMD) in the arms of female college gymnasts to assess the relative contribution of high-impact loading forces versus daily activities on bone plasticity.
METHODS
Twenty-five female collegiate gymnasts and 25 controls were studied. BMD of the lumbar spine, proximal femur, and whole body were assessed via dual energy x-ray absorptiometry. Upper-limb BMD was determined by custom analyses of the whole-body scans to examine arms individually.
RESULTS
BMD of gymnasts was significantly (P < 0.0001) greater than controls at all sites. Whole-body BMD was 8% higher in gymnasts (1.270 +/- 0.078 vs 1.175 +/- 0.073 g x cm(-2)), with 18-19% differences in the lumbar spine (1.427 +/- 0.144 vs 1.212 +/- 0.106 g x cm(-2), right proximal femur (1.298 +/- 0.101 vs 1.100 +/- 0.129 g x cm(-2)), and left proximal femur (1.293 +/- 0.111 vs 1.104 +/- 0.133 g x cm(-2)). Arm BMD was 17% greater in gymnasts, with higher values in both dominant (1.013 + 0.067 vs 0.875 + 0.066 g x cm(-2)) and nondominant (1.002 + 0.060 vs 0.849 + 0.062 g x cm(-2)) arms. Intragroup comparisons revealed a significantly (P < 0.0001) greater BMD in the dominant arm of the controls but no side-to-side difference in the arms of the gymnasts.
CONCLUSIONS
Upper-limb BMD followed use patterns in both gymnasts and controls, demonstrating that the forces imposed on the arms with gymnastics training enhanced BMD and resulted in no bilateral differences. These findings illustrate the association between gymnastics training and increased BMD throughout the body, suggesting that the high BMD values observed in gymnasts are due primarily to the activity itself rather than selection bias.
DOI：
10.1097/00005768-199610000-00006
发表时间：
1996-10-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Cassell, C;Benedict, M;Specker, B
通讯作者：
Specker, B
骨量在多大程度上是由无脂量或脂肪量决定的？
DOI：
10.1093/ajcn/61.4.1110
发表时间：
1995
期刊：
The American journal of clinical nutrition
影响因子：
--
作者：
Aloia,JF;Vaswani,A;Ma,R;Flaster,E
通讯作者：
Flaster,E