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相关概念视频

Motor Unit Stimulation01:20

Motor Unit Stimulation

1.6K
When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
1.6K

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相关实验视频

Updated: Jul 19, 2025

Force and Position Control in Humans - The Role of Augmented Feedback
06:31

Force and Position Control in Humans - The Role of Augmented Feedback

Published on: June 19, 2016

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通过功能电刺激进行全向终点力控制.

Marek Sierotowicz1, Claudio Castellini2

  • 1Artificial Intelligence in Biomedical Engineering, Friedrich-Alexander-Universitat Erlangen-Nurnberg, Werner-von-Siemens Straße 61, Erlangen, 91052, GERMANY.

Biomedical physics & engineering express
|August 15, 2023
PubMed
概括
此摘要是机器生成的。

这项研究介绍了一种多功能可穿戴的功能电刺激 (FES) 设备,具有可适应的电极,用于精确的,独立于任务的四肢控制. 该系统可靠地预测和控制FES诱导的力量,为先进的神经肌肉系统应用铺平了道路.

关键词:
辅助机器人的机器人技术在FES FES FES控制力量控制力量的控制.人类四肢的阻抗控制肌肉骨模型的模型灵感来自机器人的肌肉控制.

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Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging
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Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging

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Non-Invasive Electrical Brain Stimulation Montages for Modulation of Human Motor Function
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Non-Invasive Electrical Brain Stimulation Montages for Modulation of Human Motor Function

Published on: February 4, 2016

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相关实验视频

Last Updated: Jul 19, 2025

Force and Position Control in Humans - The Role of Augmented Feedback
06:31

Force and Position Control in Humans - The Role of Augmented Feedback

Published on: June 19, 2016

7.9K
Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging
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Neuronavigated Focalized Transcranial Direct Current Stimulation Administered During Functional Magnetic Resonance Imaging

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Non-Invasive Electrical Brain Stimulation Montages for Modulation of Human Motor Function
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Non-Invasive Electrical Brain Stimulation Montages for Modulation of Human Motor Function

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科学领域:

  • 生物医学工程 生物医学工程
  • 康复技术 康复技术 康复技术

背景情况:

  • 功能电刺激 (FES) 具有广泛的应用,但目前的可穿戴设备缺乏用户适应性,依赖于特定任务的控制.
  • 开发可适应和通用的FES系统对于增强用户独立性和治疗结果至关重要.

研究的目的:

  • 为了展示一个新的,可适应的可穿戴功能电刺激 (FES) 原型.
  • 通过FES实现人类四肢的通用,独立于任务的阻抗控制.
  • 为了验证设备可靠地诱导和预测FES产生的力量的能力.

主要方法:

  • 压缩外套设计允许轻松修改电极布局,以适应各种车身框架.
  • 该系统通过使用6轴力-扭矩传感器对所需输出进行FES诱导力的测量来验证.
  • 一个离线回归算法被开发和分析,以预测基于刺激电流的力输出.

主要成果:

  • 开放循环力控制实现了指挥和测量力之间的高相关性 (高达0.88).
  • 基于抽的校准显著减少了在线控制中的根平均平方 (RMS) 错误.
  • 离线回归算法准确地预测了FES诱导的力,相关性高达0.94和0.12的平均正常化RMS误差.

结论:

  • 可靠的FES力输出控制是先进FES应用的基础.
  • 这项技术有可能为人类神经肌肉系统提供通用控制.
  • 它可以在患有脊髓损伤等疾病的个体中实现所需的运动诱导.