ArticleIEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society2021
CMAP Scan Examination of the First Dorsal Interosseous Muscle After Spinal Cord Injury.
Article in IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 18 citations in OpenAlex.
- Effect of surface electrode recording area on compound muscle action potential scan processing for motor unit number estimation.Frontiers in neuroscience · 2024Article
- Compound muscle action potential (CMAP) scan examination of paretic and contralateral muscles reveals motor unit alterations after stroke.Science China. Life sciences · 2023Article
- Sensitivity Analysis of CMAP Scan Step Index to Different Stimulation Parameters and Examination of Muscles Affected by Spinal Cord Injury.IEEE transactions on bio-medical engineering · 2023Article
- A Novel Analysis of CMAP Scans From Perspective of Information Theory: CMAP Distribution Index (CDIX).IEEE transactions on bio-medical engineering · 2023Article
- Safety and effectiveness of electromyography-induced rehabilitation treatment after epidural electrical stimulation for spinal cord injury: study protocol for a prospective, randomized, controlled trial.Neural regeneration research · 2023Article
- A Novel Analysis of Compound Muscle Action Potential Scan: Staircase Function Fitting and StairFit Motor Unit Number Estimation.IEEE journal of biomedical and health informatics · 2023Article
- Electromyography-Force Relation and Muscle Fiber Conduction Velocity Affected by Spinal Cord Injury.Bioengineering (Basel, Switzerland) · 2023Article
- Motor Unit Number Estimation of the Second Lumbrical Muscle in Human Hand.Frontiers in physiology · 2022Article
- A single center report of MScanFit motor unit number estimation in five muscles of healthy subjects.Frontiers in human neuroscience · 2022Article
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
Abstract
The study assessed motor unit loss in muscles paralyzed by spinal cord injury (SCI) using a novel compound muscle action potential (CMAP) scan examination. The CMAP scan of the first dorsal interosseous (FDI) muscle was applied in tetraplegia (n = 13) and neurologically intact (n = 13) subjects. MScanFit was used for estimating motor unit numbers in each subject. The D50 value of the CMAP scan was also calculated. We observed a significant decrease in both CMAP amplitude and motor unit number estimation (MUNE) in paralyzed FDI muscles, as compared with neurologically intact muscles. Across all subjects, the CMAP (negative peak) amplitude was 8.01 ± 3.97 mV for the paralyzed muscles and 16.75 ± 3.55 mV for the neurologically intact muscles (p < 0.001). The CMAP scan resulted in a MUNE of 59 ± 37 for the paralyzed muscles, much lower than 108 ± 21 for the neurologically intact muscles (p < 0.001). No significant difference in D50 was observed between the two groups (p = 0.2). For the SCI subjects, there was no significant correlation between MUNE and CMAP amplitude, or any of the clinical assessments including pinch force, grip force, the Graded Redefined Assessment of Strength, Sensibility and Prehension (GRASSP) score, and SCI duration (p > 0.05). The findings provide an evidence of motor unit loss in the FDI muscles of individuals with tetraplegia, which may contribute to weakness and other hand function deterioration. The CMAP scan offers several practical benefits compared with the traditional MUNE techniques because it is noninvasive, automated and can be performed within several minutes.
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