将FES和外骨结合在混合触觉系统中,以增强VR体验
概括
这项研究引入了一种混合控制器,将上肢外骨与功能电刺激 (FES) 合并,以改善运动功能康复. 该系统增强了触觉反,显示了治疗神经肌肉疾病的前景.
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
- 神经科学是一个神经科学.
背景情况:
- 机器人技术和功能电刺激 (FES) 有效地恢复神经肌肉疾病患者的运动功能.
- 通过整合先进的控制系统来改善触觉反,可以增强目前的康复方法.
研究的目的:
- 开发和测试一款新型混合控制器,将上肢外骨架与FES集成在一起,以便在以任务为导向的运动中改善触觉反.
- 在虚拟环境中评估控制器的性能,重点是提高运动任务执行和感知负载.
主要方法:
- 结合上肢外骨架和FES的混合控制器被开发并测试在八名无损参与者身上.
- 使用辅助和电阻两种控制模式来调节感知负载,并根据四肢运动实时调整FES强度.
- 通过在虚拟选择和放置任务中测量动力错误和运动平滑度来评估性能.
主要成果:
- 混合控制系统在辅助和电阻模式 (0.048±0.007米到0.06±0.006米) 中显著降低了目标匹配误差.
- 在混合条件下保持了运动流性 (SPARC值从-2.58±0.12到-3.30±0.13).
- 电阻方法增加了代谢消耗 (1.04±0.03 W/kg),这表明通过FES.物体重量的更现实的模拟.
结论:
- 开发的混合控制器有效地提高了运动性能,并在上肢操纵任务中增强了触觉反.
- 该系统调节肌肉激活和感知负载的能力显示了在神经肌肉疾病康复中临床应用的潜力.
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