一種踝關(guān)節(jié)三維運動空間的量化算法
發(fā)布時間：2018-08-23 09:51
【摘要】：目的結(jié)合踝關(guān)節(jié)在各方向上運動之間的約束關(guān)系,對其三維轉(zhuǎn)動角度進行積分,得到三維運動空間的大小,用于更加準確全面地量化其靈活度和康復程度。方法選取25例大學生志愿者,其中無踝關(guān)節(jié)損傷的健康者20例,近期有過踝關(guān)節(jié)損傷的患者5例。使用運動捕捉系統(tǒng)實時記錄被測者腳上標記點的三維坐標。利用三角函數(shù)將這些坐標轉(zhuǎn)化為轉(zhuǎn)動角度并進行處理,通過使用多項式擬合,得到踝關(guān)節(jié)在各個方向上最大轉(zhuǎn)動角度隨跖屈和背屈角度變化的方程。對擬合得到的方程進行積分,得到踝關(guān)節(jié)三維運動空間的大小。結(jié)果健康人群踝關(guān)節(jié)的三維運動空間為41.256,個體間差距小于10%�；颊呋紓�(cè)三維運動空間的大小為33.163,由于康復程度的不同,個體間差距小于15%。兩組之間存在顯著性差異(t=8.804,P0.01)。在同一跖屈和背屈角度下,內(nèi)翻的最大轉(zhuǎn)動角度比外翻大,內(nèi)旋的最大轉(zhuǎn)動角度比外旋大。結(jié)論通過此算法能更準確地量化踝關(guān)節(jié)三維運動空間的大小,實現(xiàn)對踝關(guān)節(jié)靈活度和康復程度更全面的評估。
[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.
【作者單位】： 河北大學電子信息工程學院;
【基金】：河北省自然科學基金項目(No.H2016201201)
【分類號】：R49
本文編號：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.
【作者單位】： 河北大學電子信息工程學院;
【基金】：河北省自然科學基金項目(No.H2016201201)
【分類號】：R49
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