跳远运动员起跳脚与摆动脚根骨的骨密度研究

On Bone Mineral Density in Calcaneal Bone of Jump Trail Foot and Swinging Foot for Long Jump Athletes

为了揭示跳远运动员的根骨骨密度特点,探讨了跳远训练对起跳脚跟骨骨密度的影响.研究采用超声Achcilles Insight根骨骨密度测定仪,就跳远运动员(24名男子和16名女子)的起跳脚和摆动脚进行跟骨骨密度的测定和分析.结果表明:跳远运动员起跳脚与摆动脚的跟骨骨密度指标无显著差异,运动员的骨密度指标较同龄人高;起跳脚骨强度、根骨骨密度与BMI指数呈显著相关;男运动员中有12.5%起跳脚骨和摆动脚根骨骨密度在同龄人的85%以下,提示部分运动员有骨折风险,需要一定的干预.

The purpose of this study is to explore the influence of long jump training on bone mineral density （BMD） of calcaneal bone and to perform medical supervision for nutrition and diet. 24 male and 16 female athletes participated in this study by means of achcilles insight cryoscope BMD instrument. The calcaneal ultrasonic conduction velocity is preset and compared with jump foot and swinging foot in long jump athletes. The results are as follow： The difference of BMD in jump trail foot and swinging foot was not trivial, and the calcaneal BMD of long jump athletes is found higher then benchmark. Some indices of BMD in jump foot are found to be correlated with body mass index （BMI）. The value of bone density in 12.5 percentage of male athletes is under 85% people of same age, suggesting that some jump athletes are subject to risk of fracture. The long jump exercise helps promoting calcaneal BMD, but the BMD are found lower than normal value among some male athletes, indicating the need of interfere.