Accuracy of Temporo-Spatial and Lower Limb Joint Kinematics Parameters Using OpenPose for Various Gait Patterns With Orthosis
Accuracy of Temporo-Spatial and Lower Limb Joint Kinematics Parameters Using OpenPose for Various Gait Patterns With Orthosis
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DOI：
10.1109/tnsre.2021.3135879
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发表时间：
2021-01-01
影响因子：
4.9
通讯作者：
Takemura, Hiroshi
中科院分区：
文献类型：
--
作者：
Yamamoto, Masataka;Shimatani, Koji;Takemura, Hiroshi
没有附件和专门的大型环境的具有成本效益的步态分析系统可以提供有用的信息，以确定在临床现场的有效治疗。本研究探讨了一个单一的基于摄像头的姿态估计系统，使用OpenPose（OP）的能力，以测量的时间-空间和关节运动学参数，在步态矫形器。11名健康成年男性在不同的速度和脚前进角（FPA）条件下行走。时空和关节运动学参数的测量使用一个单一的基于摄像机的系统与OP和三维运动捕捉系统。评估了每种条件下系统之间的一致性限度、平均绝对误差、绝对一致性（ICC 2，1）和相对一致性（ICC 3，1）的可靠性和有效性。结果显示，大部分时间-空间参数和髋关节和膝关节运动学参数的ICC为良好至优秀（0.60 - 0.98）。相反，在所有条件下，踝关节运动学的ICC大多数为差至一般（< 0.60）。因此，使用OP的步态分析可以用作临床评估工具，用于确定步态期间的时空、髋关节和膝关节矢状面角度。
A cost-effective gait analysis system without attachments and specialized large environments can provide useful information to determine effective treatment in clinical sites. This study investigates the capability of a single camera-based pose estimation system using OpenPose (OP) to measure the temporo-spatial and joint kinematics parameters during gait with orthosis. Eleven healthy adult males walked under different conditions of speed and foot progression angle (FPA). Temporo-spatial and joint kinematics parameters were measured using a single camera-based system with OP and a three-dimensional motion capture system. The limit of agreement, mean absolute error, absolute agreement (ICC2, 1), and relative consistency (ICC3, 1) between the systems under each condition were assessed for reliability and validity. The results demonstrated that most of the ICC for temporo-spatial parameters and hip and knee kinematics parameters were good to excellent (0.60 - 0.98). Conversely, most of the ICC for ankle kinematics in all conditions were poor to fair (< 0.60). Thus, the gait analysis using OP can be used as a clinical assessment tool for determining the temporo-spatial, hip, and knee sagittal plane angles during gait.