摘要
疲劳性骨折是一种常见的骨损伤,在运动员基础训练期间可达30%甚至更高,影响运动员的运动水平和运动寿命。提出一种对运动员骨疲劳水平进行实时检测和评价的新技术。利用超声Lamb波无损检测方法,依据骨杨氏模量与Lamb波色散曲线的关系,确定衡量骨疲劳水平的指标。所提出的最优化算法在保持测量精度的同时,还能削弱随机分布的测量误差时结果的影响,对提高运动员的运动水平和保护运动员安全具有实际应用价值。
Bone fatigue is one of the common causes of fracture. Its possibility is as high as 30 % or even more during fundamental athletic training. This paper proposes a novel non-inva- sive real-time method of evaluating the level of bone fatigue. Based on the relationship between Young＇s modulus of bone and its dispersive curves, the author defines the index of evaluating bone fatigue level. In addition, the optimized algorithm can diminish the influence of randomly distributed experimental errors, and has practical valuable for improving athletic training level and protection of athletes.
出处
《中国体育科技》
CSSCI
北大核心
2008年第1期40-42,46,共4页
China Sport Science and Technology
基金
教育部博士点基金资助项目(2002028402)。
关键词
运动员
运动骨疲劳
杨氏模量
无损评价
exercise bone fatigue
Young ＇s modulus
non-invasive evaluation
