Systematic Development of a Simple Human Gait Index

IF 17.2 1区 工程技术 Q1 ENGINEERING, BIOMEDICAL
Abu Ilius Faisal;Tapas Mondal;M. Jamal Deen
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Abstract

Human gait analysis aims to assess gait mechanics and to identify the deviations from “normal” gait patterns by using meaningful parameters extracted from gait data. As each parameter indicates different gait characteristics, a proper combination of key parameters is required to perform an overall gait assessment. Therefore, in this study, we introduced a simple gait index derived from the most important gait parameters (walking speed, maximum knee flexion angle, stride length, and stance-swing phase ratio) to quantify overall gait quality. We performed a systematic review to select the parameters and analyzed a gait dataset (120 healthy subjects) to develop the index and to determine the healthy range (0.50 – 0.67). To validate the parameter selection and to justify the defined index range, we applied a support vector machine algorithm to classify the dataset based on the selected parameters and achieved a high classification accuracy (∼95%). Also, we explored other published datasets that are in good agreement with the proposed index prediction, reinforcing the reliability and effectiveness of the developed gait index. The gait index can be used as a reference for preliminary assessment of human gait conditions and to quickly identify abnormal gait patterns and possible relation to health issues.
系统开发简单人体步态指数
人体步态分析旨在评估步态力学,并通过使用从步态数据中提取的有意义参数来识别偏离 "正常 "步态模式的情况。由于每个参数都表示不同的步态特征,因此需要适当组合关键参数才能进行整体步态评估。因此,在本研究中,我们从最重要的步态参数(行走速度、膝关节最大屈曲角度、步长和步幅-摆动相位比)中提取了一个简单的步态指数,用于量化整体步态质量。我们对参数的选择进行了系统回顾,并对步态数据集(120 名健康受试者)进行了分析,以制定该指数并确定健康范围(0.50 - 0.67)。为了验证参数的选择并证明所定义的指数范围,我们根据所选参数应用支持向量机算法对数据集进行了分类,并取得了较高的分类准确率(∼95%)。此外,我们还探索了其他已发表的数据集,这些数据集与所提出的指数预测结果非常吻合,从而加强了所开发步态指数的可靠性和有效性。步态指数可作为初步评估人体步态状况的参考,并能快速识别异常步态模式及可能与健康问题的关系。
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来源期刊
IEEE Reviews in Biomedical Engineering
IEEE Reviews in Biomedical Engineering Engineering-Biomedical Engineering
CiteScore
31.70
自引率
0.60%
发文量
93
期刊介绍: IEEE Reviews in Biomedical Engineering (RBME) serves as a platform to review the state-of-the-art and trends in the interdisciplinary field of biomedical engineering, which encompasses engineering, life sciences, and medicine. The journal aims to consolidate research and reviews for members of all IEEE societies interested in biomedical engineering. Recognizing the demand for comprehensive reviews among authors of various IEEE journals, RBME addresses this need by receiving, reviewing, and publishing scholarly works under one umbrella. It covers a broad spectrum, from historical to modern developments in biomedical engineering and the integration of technologies from various IEEE societies into the life sciences and medicine.
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