The duration of exercise as a regulator of bone mass
The duration of exercise as a regulator of bone mass
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DOI：
10.1016/s8756-3282(00)00405-1
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发表时间：
2001-01-01
期刊：
影响因子：
4.1
通讯作者：
Seeman, E
中科院分区：
文献类型：
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作者：
Karlsson, MK;Magnusson, H;Seeman, E
运动与峰值骨密度（BMD）增加有关。为了确定运动持续时间与BMD之间的关系，我们用双能X线骨密度仪（DXA）测量了轴骨和肩胛骨的BMD，用定量超声（QUS）测量了跟骨的声速（SOS）、宽带衰减（BUA）和刚度指数（stiffness index）。在67名现役国家男子足球运动员中，（平均年龄23岁，范围17-35岁），其中包括23名英超联赛球员，每周锻炼12小时（范围8-18），23名三级联赛球员每周锻炼8小时（范围3-18），和21个第六联赛球员行使6小时/周结果与24名年龄和性别匹配的久坐对照组进行比较，并以平均值+/- SEM表示，整个组的所有承重区域的BMD均高于对照组（BMD：全身6.8 +/-0.7%，腿部9.6 +/-0.8%，腰椎13.2 +/-1.2%，股骨颈12.7 +/- 1.2% [所有p < 0.001];跟骨SOS 4.2 +/-0.3%，BUA 8.7 +/-1.5%，刚度指数24.2 +/- 2.0% [均p < 0.01]），头部或手臂BMD无差异，比较足球运动员进行不同活动持续时间的运动时，BMD或QUS测量值没有差异。活动持续时间与BMD负重区和QUS相关，前提是
Exercise is associated with increased peak bone mineral density (BMD), To determine the relationship between the duration of exercise and BMD, we measured BMD of the axial and appendicular skeleton by dual-energy X-ray absorptiometry (DXA), and speed of sound (SOS), broadband attenuation (BUA), and stiffness index by quantitative ultrasound (QUS) of the calcaneus, in 67 active male national soccer players (mean age 23 years, range 17-35), which included 23 premier-league players exercising 12 h/week (range 8-18), 23 third-league players exercising 8 h/week (range 3-18), and 21 sixth-league players exercising 6 h/week (range 2-10), Results were compared with 24 sedentary age-and gender-matched controls and presented as mean +/- SEM, BMD was higher in all weight-bearing regions for the whole group relative to controls (BMD: total body 6.8 +/- 0.7%, leg 9.6 +/- 0.8%, lumbar spine 13.2 +/- 1.2%, femoral neck 12.7 +/- 1.2% [all p < 0.001]; calcaneus SOS 4.2 +/- 0.3%, BUA 8.7 +/- 1.5%, and stiffness Index 24.2 +/- 2.0% [all p < 0.01]), No differences were found in head or arm BMD, There were no differences in BMD or QUS measurements when comparing soccer players exercising for different activity durations. Duration of activity correlated with BMD weight-loaded regions and with QUS, provided it was less