Quantifying lumbar-pelvis coordination during gait using a modified vector coding technique
Quantifying lumbar-pelvis coordination during gait using a modified vector coding technique
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DOI：
10.1016/j.jbiomech.2013.12.032
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发表时间：
2014-03-21
影响因子：
2.4
通讯作者：
Chockalingam, Nachiappan
中科院分区：
文献类型：
--
作者：
Needham, Robert;Naemi, Roozbeh;Chockalingam, Nachiappan
人体步态模式的复杂性已成为运动控制和生物力学领域的一个重要研究课题。运动范围仍然是量化运动障碍的首选方法，然而，在这些传统的线性测量中，节段间协调和运动变异性通常被忽略。使用向量编码和循环统计的动态系统方法提供了量化协调和可变性的非线性技术。这项研究提供了全面的矢量编码和循环统计计算。此外，骨盆腰椎协调和协调变异性数据，从十个健康的年轻男性参与者在五个步行试验使用光电系统提供。这些新的数据可以形成该研究领域未来研究的基线信息。最后，提出了一种新的说明，以目前的协调和协调变化信息的步态运动学，结合从修改后的矢量编码技术的输出与传统的时间序列分段角度数据。当应用于单个患者时，该技术可以有益于评估干预对患者特异性节段间协调模式的影响，并对临床环境产生影响。(C)2014爱思唯尔有限公司版权所有。
The complexity of human gait patterns has become a topic of major interest in motor control and biomechanics. Range of motion is still the preferred method to quantify movement impairment, however, within these traditional linear measures, the inter-segmental coordination and movement variability is normally ignored. A dynamical systems approach using vector coding and circular statistics provides non-linear techniques to quantify coordination and variability. This study provides comprehensive vector coding and circular statistics calculations. Additionally, pelvis-lumbar coordination and coordination variability data obtained from ten healthy young male participants during five walking trials using an optoelectronic system is provided. This novel data can form the baseline information for future studies in this area of research. Finally, a new illustration to present coordination and coordination variability information of gait kinematics, combining the output from the modified vector coding technique with traditional time-series segmental angle data is presented. This technique, when applied to single patients can be beneficial to assess the effect of an intervention on the patient-specific intersegmental coordination pattern with implications to the clinical setting. (C) 2014 Elsevier Ltd. All rights reserved.