《中国康复理论与实践》

《中国康复理论与实践》 ›› 2005, Vol. 11 ›› Issue (04): 254-255.

• 专题 • 上一篇    下一篇

踝关节背屈和跖屈的脑功能成像研究

蒋天裕; 王兴林; 马林; 李德军; 胡杰   

  1. 解放军总医院理疗科 北京市 100853
  • 收稿日期:2005-02-22 出版日期:2005-04-25 发布日期:2005-04-25

Imaging measurement of brain function when ankle dorsiflexion and planter flexion

JIANG Tian-yu, WANG Xing-lin, MA Lin, et al   

  1. The Department of Physiotherapy, The General Hospital of PLA, Beijing 100853, China
  • Received:2005-02-22 Published:2005-04-25 Online:2005-04-25

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被引次数

19

摘要： 目的检测参与踝关节背屈和跖屈运动的脑区。方法健康受试者6 人,分别进行踝关节背屈和跖屈运动,同时用1.5 T fMRI行头颅扫描。结果踝关节背屈运动时脑部兴奋区为双侧第1躯体运动皮质(MⅠ)和第1躯体感觉皮质(SⅠ)(对侧大脑半球兴奋区域面积大于同侧),双侧主要视区及小脑蚓;抑制区为19 区、20 区和39 区。跖屈运动时兴奋区为对侧第2躯体运动区(MⅡ)、纹状体及同侧补充运动区(SMA)、边缘系统;抑制区域为双侧中央前回和中央后回中上部位、顶上小叶和顶下小叶以及前额皮质。结论大脑对踝关节背屈和跖屈运动控制的成分不完全对等。

关键词: 踝关节, 功能性磁共振, 康复, 脑功能, 偏瘫, 锥体束

Abstract: ObjectiveTo measure cortical areas involved ankle dorsiflexion and planter flexion.MethodsSix-health subjects performed ankle dorsiflexion and planter flexion. While, functional MRI at 1.5 T was made.ResultsWhen ankle dorsiflexion, the excited cortical areas included bilateral primary motor cortex (MⅠ) and primary somatosensory cortex (SⅠ), but area on contralateral side bigger than that on ipsilateral side, as well as chief visual cortexes and vermis of cerebellum. Inhibited areas included area 19, area 20 and area 39. When ankle planter flexion, the excited areas included contralateral secondary motor area (MⅡ) and striate body, ipsilateral supplementary motor area (SMA) and limbic system. Inhibited areas included bilateral upper middle precentral gyrus and postcentral gyrus, superior parietal lobule, inferior parietal lobule and prefrontal cortex.ConclusionThere is a great difference in the brain function images respectively in ankle dorsiflexion and planter flexion.

Key words: ankle, functional magnetic resonance imaging (fMRI), rehabilitation, brain function, hemiplegia, pyramidal tract