Ishikawa Takuji, Sakuraba Keishoku
Department of Sports Medicine, School of Health and Sports Science, Juntendo University.
Clin Calcium. 2009 Aug;19(8):1125-31.
It is generally known that bone mineral density increases when we perform sports and physical activities. However, bone metabolism movement varies depending not only on the type, frequency and intensity of sport and physical activity, but also on age and sex. Regarding for the bone metabolism movement showing a high power exercise, it is assumed that increase of bone mineral density occurs by bone formation being promoted. On the other hand, it is reported that bone mineral density of endurance athletes such as marathon runners is lower than that of non-athletes. In the bone metabolism movement of endurance exercises, bone resorption is temporarily promoted after the exercise, followed by the promotion of bone formation. Type I collagen cross-linked N-telopeptides (NTX) have a potential to be markers for early diagnosis of stress fracture.
众所周知，当我们进行体育运动和身体活动时，骨矿物质密度会增加。然而，骨代谢运动不仅取决于运动和身体活动的类型、频率和强度，还取决于年龄和性别。关于显示高强度运动的骨代谢运动，据推测骨矿物质密度的增加是通过促进骨形成而发生的。另一方面，据报道，马拉松运动员等耐力运动员的骨矿物质密度低于非运动员。在耐力运动的骨代谢运动中，运动后骨吸收会暂时增加，随后是骨形成的增加。I型胶原交联N-端肽（NTX）有可能成为应力性骨折早期诊断的标志物。
