Real-Time Knee Adduction Moment Feedback Training Using an Elliptical Trainer
Real-Time Knee Adduction Moment Feedback Training Using an Elliptical Trainer
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DOI：
10.1109/tnsre.2013.2291203
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发表时间：
2014-03-01
影响因子：
4.9
通讯作者：
Zhang, Li-Qun
中科院分区：
文献类型：
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作者：
Kang, Sang Hoon;Lee, Song Joo;Zhang, Li-Qun
膝外收力矩 (EKAM) 在许多方面与膝骨关节炎 (OA) 相关，包括膝骨关节炎的存在、进展和严重程度。尽管它很重要，但目前缺乏可以在不使用运动分析实验室的情况下为患者提供膝关节 OA 实时 EKAM 生物反馈以进行训练和临床评估的 EKAM 估计方法。实用的实时 EKAM 估计方法利用简单的六自由度测角仪测量的运动学和脚下多轴力传感器测量的动力学，旨在为患者在踏上椭圆机时提供 EKAM 的实时反馈，该方法可用于控制和改变 EKAM。通过对七名无肌肉骨骼疾病的受试者进行步进试验，验证了实时 EKAM 估计方法的高可靠性（ICC（2,1）：0.9580）。结合椭圆训练机的功能性负重步进和减轻脉冲力等优点，实时EKAM估计方法有望帮助膝关节骨关节炎患者更好地控制额面膝关节负荷，减少膝关节骨关节炎的发生和进展。
The external knee adduction moment (EKAM) is associated with knee osteoarthritis (OA) in many aspects including presence, progression, and severity of knee OA. Despite of its importance, there is a lack of EKAM estimation methods that can provide patients with knee OA real-time EKAM biofeedback for training and clinical evaluations without using a motion analysis laboratory. Apractical real-time EKAM estimation method, which utilizes kinematics measured by a simple six degree-of-freedom goniometer and kinetics measured by a multi-axis force sensor underneath the foot, was developed to provide real-time feedback of the EKAM to the patients during stepping on an elliptical trainer, which can potentially be used to control and alter the EKAM. High reliability (ICC(2,1): 0.9580) of the real-time EKAM estimation method was verified through stepping trials of seven subjects without musculoskeletal disorders. Combined with advantages of elliptical trainers including functional weight-bearing stepping and mitigation of impulsive forces, the real-time EKAM estimation method is expected to help patients with knee OA better control frontal plane knee loading and reduce knee OA development and progression.