| 王玉昌 庞伟 冯欢欢 李松 徐艳 贾清政.痉挛型大鼠骨骼肌不同功能状态下表面肌电特征性变化的研究[J].,2015,15(14):2658-2662 |
| 痉挛型大鼠骨骼肌不同功能状态下表面肌电特征性变化的研究 |
| Research: Characteristic of Surface Electromyography in the Contractionof Spastic Skeletal Muscle |
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| DOI： |
| 中文关键词: 表面肌电 痉挛型大鼠 模型 |
| 英文关键词: sEMG Spastic Muscle Model |
| 基金项目:黑龙江省研究生创新科研项目（LM2014-049） |
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| 中文摘要: |
| 目的：研究痉挛型瘫痪大鼠骨骼肌不同功能状态对其表面肌电特征性的影响。方法：选用健康5 日龄新生wistar 大鼠60 只
随机分为两组即：痉挛型瘫痪大鼠模型组和正常饲养组。复制痉挛型瘫痪大鼠模型成功后饲养30天，根据肌肉三种功能状态分
为三组，分别为A 组放松状态组、B 向心性收缩状态组、C 离心收缩状态组。每组包括痉挛型瘫痪大鼠10 只，正常大鼠10 只。检
测工具采用BioTrace+Software 进行表面肌电的测试和分析；检测肌肉为伸膝肌群；检测指标为表面肌电均方根值（RMS）；检测方
式为电针刺激诱发不同收缩状态。结果采用SPSS17.0 统计软件进行数据分析。结果：放松状态下痉挛大鼠RMS (2.76± 0.09)v，正
常大鼠RMS (2.82± 0.07)v，独立样本的t 检验P=0.126>0.05；向心性收缩状态痉挛大鼠RMS (10.25± 0.35)v，正常大鼠RMS
（11.07± 0.81）v，独立样本的t检验P=0.012<0.05；离心性收缩状态痉挛大鼠RMS（3.32± 0.27）v，正常大鼠RMS（4.0± 3.045）v，独
立样本的t 检验P=0.001<0.05。结论：痉挛型骨骼肌收缩时肌纤维的募集异于正常骨骼肌，表面肌电对鉴别肌痉挛有效。 |
| 英文摘要: |
| Objective:To investigate the effect of the different skeletal muscle contraction of the spastic paralysis in rat on its
surface electromyography characteristic.Methods:The healthy five-day-old newborn wistar rats were randomly divided into two groups:
spastic paralysis model rats and normal diet group. Feeding spastic paralysis model rats for 30 days. These rats were divided into three
groups according to three different states contraction of skeletal muscular, i.e. state of relaxation group (Group A), concentric contraction
(Group B) , eccentric contraction state (Group C). Each group includes 10 spastic paralysis rats and 10 normal rats. BioTrace+ Software
testing tools were used to test and analyze surface electromyography characteristic and detected Knee extensor muscles with the surface
EMG which is including RMS (RMS); last one is to evoke different contraction by artificial stimulation. SPSS17.0 statistical software
was used to analyze the raw data.Results:Under therelaxed state ,the RMS between spasm rats and normal rats shows no significant
difference [(2.76± 0.09v vs 2.82± 0.07 v, P=0.126 ]; There are significant differences in spasm rats and normal rats under the concentric
contraction of RMS [ (10.25± 0.35) vvs RMS (11.07± 0.81) v, P=0.012 ] ; In the eccentric contraction, the RMS between spasm rats
and normal rats have significant differences [ RMS (3.32± 0.27) v vs RMS (4.03± 0.45) v, P=0.001.Conclusion:The contraction of the
spastic muscle fibers in skeletal muscle raising is different fromnormal skeletal muscle's, and surface electromyography technology is the
effective method to differentiate muscle spasm. |
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