Relationship between EMG and muscle force after spinal cord injury.
Relationship between EMG and muscle force after spinal cord injury.
复制标题
脊髓损伤后肌电图与肌力的关系。
DOI：
10.1080/10790268.2001.11753550
复制
发表时间：
2001
期刊：
影响因子：
--
通讯作者：
Alexeeva,N
中科院分区：
文献类型：
--
作者：
Calancie,B;Molano,MR;Broton,JG;Bean,JA;Alexeeva,N
Objective:The purpose of this study was to compare the electromyography (EMG) score during contraction of a given muscle to the independently measured manual muscle test (MMT)score for that same muscle (or muscle group) , to determine whether EMG measures could serve as a reasonable approximation of muscle contraction force in persons with acute spinal cord injury (SCI).Methods:We examined the strength of relationship between surface-recordedEMG and estimated muscle strength using the MMT in a population of 45 subjects with acute(<1week) traumatic SCI. Eight different muscle groups were compared in each individual;measures were repeated on these subjects approximately 2 months later. A 6-point numeric index was used for assignment of EMG scores, all of which were done in a blinded fashion by 1 investigator from tape-recorded evaluations.Results:Nearly all of the individual muscle comparisons led to positive and significant (P < .01) correlations between EMG and MMT scores, at both the acute and subacute time points following injury.Conclusions:These findings support the use of EMG scoring as an indicator of recovery of volitional strength following SCI in agiven subject. However, caution mustbe used when attempting to extrapolate EMG scores to absolute forces or when comparing EMG scores among different subjects.
