EFFECT OF EXERCISE ON BONE FORMATION DURING GROWING PERIOD

为了解运动对生长期骨形成的影响，对44名小学四年级男生进行了为期2年的跟踪调查，研究了健康儿童骨体积(跟骨、月骨)、骨转换生化指标和身体形态随年龄的变化。将受试者分为两组：体力活动组和非体力活动组，在两组骨转换生化指标无差异的情况下，运动组各级别的宽带超声衰减(BUA)均高于非运动组。这一结果表明，运动在生长期的骨形成中起着重要作用。

To clarify the effect of exercise on bone formation during growing period, we investigated the age-related changes of bone volume (Achilles, Lunar), biochemical markers of bone turnover and physique in healty children.The subjects were 44 boys at the fourth grade in elementary school and followed for 2 years. They were divided into two groups : the physically active group ; the physically non-active group.Whereas there was no difference in biochemical markers of bone turnover between two groups throughout the study, active group had higher broadband ultrasound attenuatin (BUA) than non-active group in each grades. This result indicates that exercise plays an important role in bone formation during growing period.