London Sport Institute, Middlesex University, United Kingdom.
School of Psychology, University of Central Lancashire, United Kingdom.
Gait Posture. 2014 Jul;40(3):476-9. doi: 10.1016/j.gaitpost.2014.05.003. Epub 2014 May 21.
The examination of synchronous three dimensional (3-D) kinetics and kinematics of walking in laboratory based analyses typically requires participants/patients to make foot contact with a force or pressure measuring device. However, it has been proposed that this may lead to targeting whereby participants modify their natural gait pattern in order to ensure contact with the device. This study aimed to determine the extent to which an embedded force plate (EFP) and two different pressure mats (PMs) affect natural gait kinematics. Male participants (n = 12, age 24.23 SD 4.22 years, height 1.74 m SD 0.10, mass 75.78 SD 6.90 kg) walked at a velocity of 1.25 ms(-1) along a 22 m walkway in four different conditions. (1) EFP, (2) FootScan (FS) PM, (3) MatScan (MS) PM, (4) no device (ND). 3-D angular kinematic parameters were collected using an eight camera motion analysis system. Differences in kinematics were examined using repeated measures ANOVAs. Significant differences were observed in hip abduction, knee flexion/extension and knee abduction between various conditions and may warrant consideration in future research. No significant differences were reported at the ankle joint in any conditions. Comparing the PMs, no significant differences were observed, however, significant differences between the MS and the EFP and ND conditions were identified. The research supports the efficacy of collecting gait kinematics at the ankle joint and in most variables measured at the knee and hip joints.
在基于实验室的分析中，检查同步三维（3-D）运动动力学和步行运动通常需要参与者/患者将脚与力或压力测量设备接触。然而，有人提出，这可能导致目标定位，即参与者改变其自然步态模式，以确保与设备接触。本研究旨在确定嵌入式力板（EFP）和两个不同压力垫（PM）在多大程度上影响自然步态运动学。12 名男性参与者（年龄 24.23 ± 4.22 岁，身高 1.74 ± 0.10 米，体重 75.78 ± 6.90 公斤）以 1.25 ms(-1)的速度在四个不同条件下沿 22 米的走道行走。（1）EFP，（2）FootScan（FS）PM，（3）MatScan（MS）PM，（4）无设备（ND）。使用八相机运动分析系统收集 3-D 角度运动学参数。使用重复测量方差分析检查运动学差异。在各种条件下观察到髋关节外展、膝关节弯曲/伸展和膝关节外展的运动学差异，这在未来的研究中可能需要考虑。在任何条件下，踝关节均未报告明显差异。比较 PM 时，未观察到显著差异，但在 MS 与 EFP 和 ND 条件之间确定了显著差异。研究支持在踝关节和膝关节和髋关节测量的大多数变量中收集步态运动学的有效性。
