长跑运动员膝关节损伤图像优化检测仿真研究  

Simulation Research on Image Optimization of Knee Joint Injury of Long Distance Runners

作　　者：魏剑波[1] 任海娟[1] WEI Jian - bo(Sias International University, REN Hai - juan Xinzheng Henan 451150, China)

机构地区：[1]郑州大学西亚斯国际学院,河南新郑451150

出　　处：《计算机仿真》2017年第4期331-334,共4页Computer Simulation

摘　　要：对长跑运动员膝关节损伤图像优化检测,可以避免运动员膝关节受伤,提高运动员的比赛状态。进行损伤图像检测时,应对不同阶段长跑训练下膝关节软骨承载应力应变曲线对韧带的本构关系进行分析,得到长跑训练下膝关节相关相位的力学分布规律,但是传统方法通过获取关节软骨图像浅表层应变变化,分析膝关节内、外翻和内旋力矩结构变化完成检测,但是不能准确分析膝关节软骨承载应力应变曲线,无法获取膝关节的力学分布规律,降低了检测的准确性。提出一种基于有限元分析法的长跑运动员膝关节损伤图像优化检测方法。上述方法应用有限元软件先计算出不同阶段长跑训练下膝关节软骨承载应力应变曲线对韧带的本构关系,给出膝关节软理论应力值骨承载应变张量的第一、第二不变量,获取长跑训练下膝关节软骨理论应力值,得到长跑训练下膝关节相关相位的力学分布规律,并完成了长跑运动员膝关节损伤图像优化检测。仿真结果表明,所提方法检测精确度高,为制定运动员的科学训练策略提供有效的依据。This research focuses on an optimization detection method for knee -joint injury image of long distance runner based on finite element analysis method. We worked out constitutive relation between bearing stress - strain curve of knee - joint cartilage and ligament under different stages of long - distance running, then provided theoretical stress value of cartilage and the first and second invariant of strain tensor of bone bearing. Moreover, we acquired theoretical stress value of cartilage and obtained regularity of mechanics distribution of knee - joint correlation phase. Thus, the optimization detection was completed. Simulation results show that the method has higher detection precision, and can provide effectively gist for formulating scientific training strategy.

关 键 词：长跑训练 膝关节 软骨承载 图像检测 

分 类 号：TH117.1[机械工程—机械设计及理论]