一种踝关节三维运动空间的量化算法
发布时间：2018-08-23 09:51
【摘要】：目的结合踝关节在各方向上运动之间的约束关系,对其三维转动角度进行积分,得到三维运动空间的大小,用于更加准确全面地量化其灵活度和康复程度。方法选取25例大学生志愿者,其中无踝关节损伤的健康者20例,近期有过踝关节损伤的患者5例。使用运动捕捉系统实时记录被测者脚上标记点的三维坐标。利用三角函数将这些坐标转化为转动角度并进行处理,通过使用多项式拟合,得到踝关节在各个方向上最大转动角度随跖屈和背屈角度变化的方程。对拟合得到的方程进行积分,得到踝关节三维运动空间的大小。结果健康人群踝关节的三维运动空间为41.256,个体间差距小于10%。患者患侧三维运动空间的大小为33.163,由于康复程度的不同,个体间差距小于15%。两组之间存在显著性差异(t=8.804,P0.01)。在同一跖屈和背屈角度下,内翻的最大转动角度比外翻大,内旋的最大转动角度比外旋大。结论通过此算法能更准确地量化踝关节三维运动空间的大小,实现对踝关节灵活度和康复程度更全面的评估。
[Abstract]:Objective to integrate the three-dimensional rotation angle of ankle joint with the constraint relation of motion in each direction, and obtain the size of three-dimensional motion space, which can be used to quantify the flexibility and rehabilitation degree of ankle joint more accurately and comprehensively. Methods 25 college students were selected, including 20 healthy subjects without ankle injury and 5 patients with recent ankle injury. A motion capture system is used to record the three-dimensional coordinates of the labeled points on the feet of the subjects in real-time. The trigonometric functions are used to transform these coordinates into rotation angles and to deal with them. By polynomial fitting, the equation of the maximum rotation angle of ankle joint with the angle of metatarsal flexion and dorsal flexion in all directions is obtained. The fit equation is integrated and the three-dimensional motion space of ankle joint is obtained. Results the three-dimensional motion space of ankle joint was 41.256 and the difference between individuals was less than 101.256. The size of the three-dimensional motor space of the affected side was 33.163, and the difference between individuals was less than 15 because of the different degree of rehabilitation. There was significant difference between the two groups (t = 8.804, P 0.01). At the same angle of plantar flexion and dorsal flexion, the maximum rotation angle of varus is larger than that of valgus, and the maximum rotation angle of internal rotation is larger than that of external rotation. Conclusion the algorithm can more accurately quantify the size of the three-dimensional motion space of the ankle joint and achieve a more comprehensive evaluation of the flexibility and rehabilitation degree of the ankle joint.
【作者单位】： 河北大学电子信息工程学院;
【基金】：河北省自然科学基金项目(No.H2016201201)
【分类号】：R49
本文编号：2198682
[Abstract]:Objective to integrate the three-dimensional rotation angle of ankle joint with the constraint relation of motion in each direction, and obtain the size of three-dimensional motion space, which can be used to quantify the flexibility and rehabilitation degree of ankle joint more accurately and comprehensively. Methods 25 college students were selected, including 20 healthy subjects without ankle injury and 5 patients with recent ankle injury. A motion capture system is used to record the three-dimensional coordinates of the labeled points on the feet of the subjects in real-time. The trigonometric functions are used to transform these coordinates into rotation angles and to deal with them. By polynomial fitting, the equation of the maximum rotation angle of ankle joint with the angle of metatarsal flexion and dorsal flexion in all directions is obtained. The fit equation is integrated and the three-dimensional motion space of ankle joint is obtained. Results the three-dimensional motion space of ankle joint was 41.256 and the difference between individuals was less than 101.256. The size of the three-dimensional motor space of the affected side was 33.163, and the difference between individuals was less than 15 because of the different degree of rehabilitation. There was significant difference between the two groups (t = 8.804, P 0.01). At the same angle of plantar flexion and dorsal flexion, the maximum rotation angle of varus is larger than that of valgus, and the maximum rotation angle of internal rotation is larger than that of external rotation. Conclusion the algorithm can more accurately quantify the size of the three-dimensional motion space of the ankle joint and achieve a more comprehensive evaluation of the flexibility and rehabilitation degree of the ankle joint.
【作者单位】： 河北大学电子信息工程学院;
【基金】：河北省自然科学基金项目(No.H2016201201)
【分类号】：R49
【相似文献】
相关期刊论文 前1条
1 高建新,曹阳,丁祖泉,方如华;用投影散斑立体摄影法测量人体关节的三维运动[J];医用生物力学;1998年01期
相关硕士学位论文 前1条
1 王盛;三维运动分析骶骨定标法在偏瘫患者平衡检测中的应用研究[D];南京医科大学;2012年
，本文编号：2198682
本文链接：https://www.wllwen.com/linchuangyixuelunwen/2198682.html
最近更新
教材专著
