Gymnastic training and bone density in pre adolescent females
Gymnastic training and bone density in pre adolescent females
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DOI：
10.1097/00005768-199704000-00004
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发表时间：
1997-04-01
影响因子：
4.1
通讯作者：
Adachi, JD
中科院分区：
文献类型：
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作者：
Dyson, K;Blimkie, CJR;Adachi, JD
对具有高容量冲击负荷史（过去 2 年至少 15 h.wk(-1)）的 7-11 岁女体操运动员（GYM：N = 16）和健康的非运动对照（CON：N = 16）之间的骨矿物质密度（BMD）进行了比较。全身 (WE) 和局部区域 BMD 测量通过双能 X 射线吸收测定法 (DXA) 确定，并根据身高和体重标准化，并转换为骨矿物质表观密度 (BMAD)。还通过左远端桡骨的外周 QCT (pQCT) 测量体积 BMD 和骨横截面积。 GYM 显着 (P < 0.01) 更短（129.3 +/- 5.7 vs 136.7 +/- 4.4 cm；平均值 +/- SD）且更瘦（15.1 +/- 1.9 vs 19.6 +/- 4.3% DXA 体脂），并且股骨颈显着增大（P < 0.05）； (0.698 +/- 0.058 vs 0.618 +/- 0.064 g.cm(-2)) 和转子 (0.616 +/- 0.060 vs 0.530 +/- 0.084 g.cm(-2)) 面积 BMD 高于 CON。 GYM 的全身（0.101 +/- 0.009 对比 0.094 +/- 0.007 g.cm(-3)）、股骨颈（0.245 +/- 0.060 对比 0.205 +/- 0.049 g.cm(-3)）和腰椎（0.227 +/- 0.014 对比 0.210 +/- 0.026 g.cm(-3)) BMAD 与 CON 相比。 GYM 所有地点的高度归一化面积 BMD 测量值也显着较高。桡骨总计（367.7 +/- 51.6 vs 307.4 +/- 27.6 mg.cm(-3)）、小梁总计（207.9 +/- 45.3 vs 163.8 +/- 31.4 mg.cm(-3)）和皮质总计（496.9 +/- 67.5 vs 429.8 +/- 33.8 mg.cm(-3)）与 CON 相比，GYM 的 BMD 也明显更高。总之，高容量冲击负荷与青春期前女性男性体操运动员更高的（与对照组相比）全身和局部骨矿物质密度相关。
Bone mineral density (BMD) was compared between 7-11-yr-old female gymnasts (GYM: N = 16) with a history of high volume impact loading (minimun of 15 h.wk(-1) for past 2 yr) and healthy nonathletic controls (CON: N = 16). Whole body (WE) and regional areal BMD measures were determined by dual energy x-ray absorptiometry (DXA) normalized for height and body mass and also converted to bone mineral apparent density (BMAD). Volumetric BMD and bone cross-sectional areas were also measured by peripheral QCT (pQCT) at the left distal radius. GYM were significantly (P < 0.01) shorter (129.3 +/- 5.7 vs 136.7 +/- 4.4 cm; means +/- SD) and leaner (15.1 +/- 1.9 vs 19.6 +/- 4.3% body fat from DXA), and had significantly (P < 0.05) greater femoral neck; (0.698 +/- 0.058 vs 0.618 +/- 0.064 g.cm(-2)) and trochanter (0.616 +/- 0.060 vs 0.530 +/- 0.084 g.cm(-2)) areal BMD than CON. GYM also had significantly higher whole body (0.101 +/- 0.009 vs 0.094 +/- 0.007 g.cm(-3)), femoral neck (0.245 +/- 0.060 vs 0.205 +/- 0.049 g.cm(-3)) and lumbar spine (0.227 +/- 0.014 vs 0.210 +/- 0.026 g.cm(-3)) BMAD compared with CON. Height normal ized areal BMD measures were also significantly higher at all sites in GYM. Radial total (367.7 +/- 51.6 vs 307.4 +/- 27.6 mg.cm(-3)), trabecular (207.9 +/- 45.3 vs 163.8 +/- 31.4 mg.cm(-3)), and cortical (496.9 +/- 67.5 vs 429.8 +/- 33.8 mg.cm(-3)) BMD were also significantly greater in the GYM compared with the CON. In conclusion, high volume impact loading was associated with greater (compared with controls) whole body and regional bone mineral density in pre-adolescent fe male gymnasts.