| 关晨霞,郭钢花,郭小伟,李哲,郝道剑,李晓丽.脑卒中偏瘫患者在坐位躯干旋转时躯干肌群表面肌电信号特征研究[J].中国康复,2017,32(3):192-195 |
| 脑卒中偏瘫患者在坐位躯干旋转时躯干肌群表面肌电信号特征研究 |
| Surface electromyogram signals of trunk muscles during seated trunk rotation in stroke patients with hemiplegia |
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| DOI： |
| 中文关键词: 偏瘫 躯干旋转 躯干肌 表面肌电图 |
| 英文关键词: hemiplegia trunk rotation trunk muscle surface electromyogram |
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| 中文摘要: |
| 目的：比较正常人及脑卒中偏瘫患者在躯干向左（瘫痪侧）及向右（非瘫痪侧）旋转过程中躯干浅表肌群的表面肌电信号特征。方法：选取17例脑卒中偏瘫患者及16例健康志愿者，采集2组受试者在躯干左旋（向瘫痪侧旋转）45°、右旋（向非瘫痪侧旋转）45°时腹直肌、腹外斜肌、胸段竖脊肌、腰段竖脊肌、背阔肌的表面肌电图均方根振幅(RMS)。结果：正常人在躯干向一侧旋转时对侧腹外斜肌RMS值大于转向侧(P<0.01)，转向侧胸段竖脊肌、背阔肌的RMS值大于对侧(P<0.01)；向左（瘫痪侧）旋转时脑卒中患者偏瘫侧腹外斜肌、胸段竖脊肌和背阔肌的RMS值低于正常组左侧(P<0.01)，非瘫痪侧腹外斜肌的RMS值低于正常组右侧(P<0.01)；向右（非瘫痪侧）旋转时脑卒中患者偏瘫侧腹外斜肌、胸段竖脊肌的RMS值小于正常组左侧(P<0.01)，偏瘫侧腰段竖脊肌的RMS值小于正常组左侧(P<0.05)，非瘫痪侧腹外斜肌、腰段竖脊肌和胸段竖脊肌的RMS值小于正常组右侧(P<0.01)。结论：正常人在躯干旋转时胸段竖脊肌、背阔肌、腹外斜肌呈现明显的交叉性，转向侧的胸段竖脊肌、背阔肌的肌电活动明显增加，对侧的腹外斜肌肌电活动明显增加；而脑卒中患者则没有这种交叉性。 |
| 英文摘要: |
| Objective: To compare surface electromyogram (EMG) signals of superficial trunk muscles during the trunk rotating to the left (the paralyzed side) and the right (the non-paralyzed side) between normal individuals and stroke patients with hemiplegia. Methods: Seventeen stroke patients with hemiplegia and 16 healthy volunteers were selected. Root mean square (RMS) of surface EMG signals of rectus abdominis, external oblique abdominal muscle, thoracic erector spinae muscles, lumbar erector spinae muscles and latissimus dorsi were collected from the 2 groups when the trunk rotating 45° to the left (the paralyzed side) and 45° to the right (the non-paralyzed side). Results: When the trunk of normal individuals rotated to one side, RMS value of contralateral external oblique abdominal muscle was higher than that of the rotating side (P<0.01), and RMS values of thoracic erector spinae muscles and latissimus dorsi in the rotating side were higher than those of the opposite side (P<0.01). When stroke patients rotated to the left (the paralyzed side), RMS values of external oblique abdominal muscle, thoracic erector spinae muscles and latissimus dorsi in the side of hemiplegia were lower than those of the left side in the normal group (P<0.01), and RMS value of external oblique abdominal muscle in the non-paralyzed side was lower than that of the normal group in the right side (P<0.01). When stroke patients rotated to the right (the non-paralyzed side), RMS values of external oblique abdominal muscle and thoracic erector spinae muscles in the side of hemiplegia were lower than those of the normal group in the left side (P<0.01), RMS value of lumbar erector spinae muscles in the side of hemiplegia was lower than that of normal group in the left side (P<0.05), and RMS values of external oblique abdominal muscle, thoracic erector spinae muscles and lumbar erector spinae muscles in the non-paralyzed side were lower than those of the normal group in the right side (P<0.01). Conclusion: In normal individuals rotating the trunk, thoracic erector spinae muscles, latissimus dorsi and external oblique abdominal muscle show obvious cross, EMG activities of thoracic erector spinae muscles and latissimus dorsi in the rotating side increase significantly, and EMG activities of external oblique abdominal muscle in the opposite side increase evidently. In stroke patients, no such cross is found. |
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