Control of Leg Movements Driven by EMG Activity of Shoulder Muscles.
Control of Leg Movements Driven by EMG Activity of Shoulder Muscles.
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DOI：
10.3389/fnhum.2014.00838
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发表时间：
2014
影响因子：
2.9
通讯作者：
Ivanenko YP
中科院分区：
文献类型：
--
作者：
La Scaleia V;Sylos-Labini F;Hoellinger T;Wang L;Cheron G;Lacquaniti F;Ivanenko YP
在人类行走过程中，手臂和腿之间以及颈椎和腰骶模式产生器之间存在功能性神经耦合。在这里，我们提出了一种新的方法，将上肢肌肉的肌电图（EMG）活动与腿部运动学联系起来。我们的方法充分利用了肩部肌肉在大多数运动相关运动中的高度参与，以及胳膊和腿之间的自然协调。9名健康受试者以不同的恒定和可变速度（3-5 km/h）行走，同时记录肩部（三角肌）肌电活动和行走运动学。为了确保三角肌肌电活动的高水平，受试者进行了比平时稍大的手臂摆动。用爆发样肌电活动的时间结构来预测即将到来的步骤的时空运动模式。实际和预测的跨步腿运动学比较显示高度对应（r > 0.9）。该算法也已在试点实验中实施，用于控制虚拟现实设置中的化身行走和地面行走期间的外骨骼。所提出的方法可能对人机界面和神经假肢技术（如辅助下肢外骨骼）的设计具有重要意义。
During human walking, there exists a functional neural coupling between arms and legs, and between cervical and lumbosacral pattern generators. Here, we present a novel approach for associating the electromyographic (EMG) activity from upper limb muscles with leg kinematics. Our methodology takes advantage of the high involvement of shoulder muscles in most locomotor-related movements and of the natural co-ordination between arms and legs. Nine healthy subjects were asked to walk at different constant and variable speeds (3–5 km/h), while EMG activity of shoulder (deltoid) muscles and the kinematics of walking were recorded. To ensure a high level of EMG activity in deltoid, the subjects performed slightly larger arm swinging than they usually do. The temporal structure of the burst-like EMG activity was used to predict the spatiotemporal kinematic pattern of the forthcoming step. A comparison of actual and predicted stride leg kinematics showed a high degree of correspondence (r > 0.9). This algorithm has been also implemented in pilot experiments for controlling avatar walking in a virtual reality setup and an exoskeleton during over-ground stepping. The proposed approach may have important implications for the design of human–machine interfaces and neuroprosthetic technologies such as those of assistive lower limb exoskeletons.
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DOI：
10.1111/j.1748-1716.1965.tb04069.x
发表时间：
1965-01-01
期刊：
ACTA PHYSIOLOGICA SCANDINAVICA
影响因子：
--
作者：
BALLESTEROS, ML;BUCHTHAL, F;ROSENFALCK, P
通讯作者：
ROSENFALCK, P
影响因子：
5.5
作者：
Borghese, NA;Bianchi, L;Lacquaniti, F
通讯作者：
Lacquaniti, F
影响因子：
2
作者：
de Seze, Mathieu;Falgairolle, Melanie;Cazalets, Jean-Rene
通讯作者：
Cazalets, Jean-Rene
影响因子：
2.5
作者：
Forero, Juan;Misiaszek, John E.
通讯作者：
Misiaszek, John E.
DOI：
10.1098/rspb.2009.0664
发表时间：
2009-10-22
影响因子：
4.7
作者：
Collins, Steven H.;Adamczyk, Peter G.;Kuo, Arthur D.
通讯作者：
Kuo, Arthur D.