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患有半性中风的个体在绑架他们的性肩膀时异常感知他们的肘部扭矩
Ninghe M Cai1, Julius P A Dewald2, Netta Gurari3
1Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, IL 60611, USA.
概括
患有半性中风的个体在受影响的手臂中改变了扭矩感知. 这项研究发现,中风幸存者在肩膀运动过程中高估了肘部扭矩,而他们的脚则低估了肩膀运动中的扭矩.
科学领域:
- 神经科学是一个神经科学.
- 发动机控制器的控制器
- 康复科学 康复科学 康复科学
背景情况:
- 半性中风通常会导致异常的关节合,例如肩部绑架-肘部曲协同作用.
- 这种运动障碍与对皮层-气泡脊柱通路的依赖性增加有关.
- 这些运动缺陷的感知后果,特别是关于自身感知,尚未得到充分理解.
研究的目的:
- 为了调查半性中风患者在肩膀绑架期间是否准确地感知他们的肘的扭矩.
- 在中风后的个体中,比较paretic和non-paretic四肢之间的扭矩感知.
主要方法:
- 十名半性中风患者参与了这项研究.
- 研究人员量化了异常的关节合通过测量肘部扭矩在肩部绑架相对于最大的自愿肘部曲扭矩.
- 使用扭矩匹配任务评估扭矩感知,以量化感知错误.
主要成果:
- 患有中风的参与者在肩膀绑架过程中,与非性肢体 (1.2%) 相比,他们的性肢体 (13.2%) 产生了显著更大的非自愿肘部扭矩.
- 感知精度有所不同,参与者高估的扭矩在他们的肘 (1.8%) 低于他们的非肘 (6.2%).
结论:
- 在执行肩膀绑架时,肘的扭矩感知与非肘的扭矩感知明显不同.
- 这些发现突显了体感官缺陷,并有助于了解中风后扭矩感知的神经基础.
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