Olsson E
Scand J Rehabil Med Suppl. 1986;15:1-55.
An objective method of gait analysis is presented. It is characterized by: Two five metre long force plates, thus giving possibility of registering several consecutive steps for each foot. Additional equipment has been provided and the whole system has been computerized. Reliability was found to be great and reproducibility good. The method has been used in registering gait variables like time and distance variables, vertical ground reaction forces and sagittal angular movement of hips and knees and these have been correlated to clinical findings. The method has been used in analysis of individuals after pelvic resections preserving the lower extremity, before and after total hip replacement, after total knee replacement and in comparison of two different methods for THR, one cemented (Charnley) and one non-cemented (HP Garches).
The gait variables most sensitive in giving evidence of a change in a patient's ambulatory status were maximal vertical force and average velocity followed by step rate, single limb support, and weight acceptance - all measurements of weight bearing capacity. Maximal vertical force and average velocity were the only gait variables that could distinguish the one type of THR from the other. In correlations between the clinical impression of gait function and its objective registration the strongest correlations were found in maximal vertical force and average velocity. Thus, gait analysis is considered a useful tool in the evaluation of locomotor function after surgical procedures.
本文介绍了一种客观的步态分析方法。其特点包括：两个五米长的测力板，从而能够记录每只脚的几个连续步幅。配备了额外的设备，整个系统已实现计算机化。结果发现可靠性很高且可重复性良好。该方法已用于记录步态变量，如时间和距离变量、垂直地面反作用力以及髋部和膝部的矢状角运动，并且这些变量已与临床发现相关联。该方法已用于分析保留下肢的骨盆切除术后、全髋关节置换术前和术后、全膝关节置换术后的个体，以及比较两种不同的全髋关节置换方法，一种是骨水泥固定（查恩利法），另一种是非骨水泥固定（HP 加尔什法）。
在显示患者行走状态变化方面最敏感的步态变量是最大垂直力和平均速度，其次是步频、单腿支撑和承重接受度——所有这些都是承重能力的测量指标。最大垂直力和平均速度是唯一能够区分两种全髋关节置换类型的步态变量。在步态功能的临床印象与其客观记录之间的相关性中，在最大垂直力和平均速度方面发现了最强的相关性。因此，步态分析被认为是评估手术程序后运动功能的一种有用工具。
