| 陈景洲,王惠娟,石真润,范建中.慢性非特异性腰痛患者躯干肌的等速力学特征和肌电信号研究[J].中国康复医学杂志,2021,(1):51~56 |
| 慢性非特异性腰痛患者躯干肌的等速力学特征和肌电信号研究 点此下载全文 |
| 陈景洲 王惠娟 石真润 范建中 |
| 南方医科大学南方医院康复理疗科， 广州市，510515 |
| 基金项目：南方医科大学临床研究启动计划重点项目（LC2016ZD020） |
| DOI：10.3969/j.issn.1001-1242.2021.01.009 |
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| 摘要： |
| 摘要
目的：探讨慢性非特异性腰痛的潜在致病原因，为日后治疗慢性腰痛提供临床支持。
方法：招募31例慢性非特异性腰痛患者，了解其疼痛程度（NRS）和Oswestry腰背功能障碍指数（ODI），同时收集在30°/s、60°/s和90°/s角速度下躯干屈伸肌群的峰力矩值（PT），并实时记录运动过程中双侧腹直肌和竖直肌的均方根值（RMS）。
结果：NRS和ODI呈正相关关系（r=0.817，P=0.045）。30°/s（t=-3.256，P=0.003）、60°/s（t=-3.970，P=0.001）和90°/s（t=-2.722，P=0.011）时屈肌PT明显少于伸肌，比值分别为0.8∶1、0.72∶1、0.81∶1。躯干屈曲和伸展时，肌肉与速度均存在交互效应（P=0.001）。双侧竖直肌的RMS在躯干伸展时随着角速度的加快而出现显著下降：①左侧竖直肌，30°/s时的RMS明显大于90°/s（P=0.001），60°/s时的RMS明显大于90°/s（P=0.048）；②右侧竖直肌，30°/s时的RMS明显大于90°/s（P=0.002），60°/s时的RMS明显大于90°/s（P=0.033）。
结论：慢性非特异性腰痛患者躯干屈肌和伸肌PT的比值在低速30°/s和60°/s时与正常健康人相似。双侧竖直肌的肌电信号在躯干伸展时随着运动角速度的增加而出现下降趋势。 |
| 关键词：慢性非特异性腰痛 等速运动 躯干肌 峰力矩 表面肌电 |
| The isokinetic mechanical characteristics and electromyogram of trunk muscles in people with chronic non-specific low back pain Download Fulltext |
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| Southern Hospital， Southern Medical University， Guangzhou， 510515 |
| Fund Project: |
| Abstract: |
| Abstract
Objective：To collect the isokinetic torques and surface electromyographic activities of trunk flexors and extensors of chronic non-specific low back pain(CNLBP) sufferers， analyzing the variation of peak torques(PT) and root mean square(RMS) of bilateral rectus abdominis and erector spinae， for the purpose of investigating the mechanism of low back pain.
Method：Thirty-one volunteers were recruited. Numerical rating scale(NRS) and Oswestry disability index(ODI) were recorded as baseline information. Meanwhile， the torques of trunk flexors and extensors were collected at 30°/s， 60°/s and 90°/s， synchronizing with taking surface electromyographic activities.
Result：NRS and ODI had a positive correlation(r=0.817，P=0.045). The EMG differences of trunk flexors and extensors were statistical significant difference at 30°/s（P=0.003），60°/s（P=0.003）and 90°/s(P=0.001). There were significant interaction effects(P=0.001) among different muscles and different velocities when trunk flexion and extension. Bilateral RMS of erector spinae were statistical significant difference when trunk flexion among 30°/s、60°/s and 90°/s.
Conclusion：Under 60°/s， the ratios of PT of trunk flexors to extensors of CNLBP sufferers were approximately the same as healthy person. The RMS of bilateral erector spinae presented a decrease trend with increasing of isokinetic velocity. |
| Keywords:chronic non-specific low back pain isokinetic movement trunk muscles peak torque surface electromyography |
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