3-DIMENSIONAL KINEMATICS OF THE HUMAN KNEE DURING WALKING
3-DIMENSIONAL KINEMATICS OF THE HUMAN KNEE DURING WALKING
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DOI：
10.1016/0021-9290(92)90254-x
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发表时间：
1992-04-01
影响因子：
2.4
通讯作者：
KALENAK, A
中科院分区：
文献类型：
--
作者：
LAFORTUNE, MA;CAVANAGH, PR;KALENAK, A
研究了正常行走时胫股关节的三维运动学。用皮质内牵引钉将靶标记物固定在胫骨和股骨上。获得下肢x线片以计算目标标记物相对于内部解剖结构的位置。采用高速电影摄像机测量5名被试以1.2 m s-1的速度行走时目标标记物的三维坐标。根据关节坐标系（JCS）解析胫骨和股骨之间的相对运动。测量结果表明，在行走过程中，每个JCS轴周围和沿着每个JCS轴发生了大量的角度和线性运动。然而，研究结果并不支持传统的观点，即所谓的膝关节“螺钉固定”机制在步态过程中起作用。
Three-dimensional kinematics of the tibiofemoral joint were studied during normal walking. Target markers were fixed to tibia and femur by means of intra-cortical traction pins. Radiographs of the lower limb were obtained to compute the position of the target markers relative to internal anatomical structures. High-speed cine cameras were used to measure three-dimensional coordinates of the target markers in five subjects walking at a speed of 1.2 m s-1. Relative motion between tibia and femur was resolved according to a joint coordinate system (JCS). The measurements have identified that substantial angular and linear motions occur about and along each of the JCS axes during walking. The results do not, however, support the traditional view that the so-called 'screw home' mechanism of the knee joint operates during gait.