| Surface electromyography combined with isokinetic muscle test for accurate evaluation of patients with incomplete lumbar spinal cord injury |
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| DOI： |
| EN KeyWords: incomplete spinal cord injury surface electromyography isokinetic muscle strength testing muscle strength muscle endurance accurate evaluation |
| Fund Project:贵州省科技计划项目（黔科合同LG字【2012】037号）；贵州省卫生厅科学技术基金项目（gzwkj2011-1-103） |
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| EN Abstract: |
| Objective: To evaluate the accuracy of surface electromyography combined with isokinetic muscle test for patients with incomplete lumbar spinal cord injury. 〖WT5"HZ〗Methods〖WT5"BZ〗: Sixty patients with incomplete lumbar spinal cord injury were recruited, and randomly divided into control group and observation group. Patients in both groups were treated with the conventional rehabilitation therapy, and those in the observation group accepted isokinetic muscle strength training additionally. The manual muscle testing (MMT) and isokinetic muscle strength testing of knee muscles including peak torque (PT), peak torque to body weight ratio (PT/BW) and endurance ratio (RO) were evaluated before and after the treatment. The integrated electromyogram (iEMG) of rectus femoris and biceps femoris and the mean power frequency (MPF) were also evaluated. Results: After the treatment for three months, the PT/BW of hamstring (H-PT/BW), PT/BW of quadriceps femoris (Q-PT/BW), iEMG of biceps femoris (BF-iEMG), iEMG of rectus femoris (RF-iEMG), RO of hamstring (H-RO), and RO of quadriceps femoris (Q-RO) were significantly increased as compared with those before the treatment (P<0.01，0.05), and those in the observation group were significantly higher than in the control group (P<0.01). The BF-MPF and RF-MPF were decreased after the treatment in both groups (P<0.05), and those in the observation group were significantly lower than in the control group (P<0.05). Although the MMT of hamstring (H-MMT) and MMT of quadriceps femoris (Q-MMT) were increased in both groups after the treatment (P<0.05), there was no significant difference between those two groups. Conclusion: Compared to the traditional manual muscle strength testing, sEMG and isokinetic muscle test could accurately quantify the changes of lower limb muscle strength and muscular endurance after rehabilitation treatment in patients with lumbar spinal cord injury, which could be used as a supplement to the rehabilitation assessment methods for such patients. |
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