Reducing intersubject variability in motor unit number estimation
โ Scribed by Jeremy M. Shefner; Devanand Jillapalli; Deborah Y. Bradshaw
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 111 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0148-639X
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โฆ Synopsis
Motor unit number estimation (MUNE) attempts to directly assess the number of functioning motor units present in a muscle. It is an important addition to the electrodiagnostic evaluation; however, both intrasubject and intersubject reliability must be minimized for this technique to be clinically useful. A number of MUNE techniques have been developed. We propose a change in the way of calculating the MUNE, using the statistical technique described by Daube, and show that this modification reduces intersubject variability and improves test-retest reliability in normal subjects.
๐ SIMILAR VOLUMES
A computer model of the motor unit number estimation procedure was developed to evaluate the sampling error associated with estimates of the number of motor units in muscles. Two different distributions were used to model the motor unit amplitude distribution and were chosen in such a manner that th
Current techniques for motor unit number estimation (MUNE) rely on the amplitude of the compound muscle action potential (CMAP) evoked by supramaximal stimulation and mean amplitude of single motor unit potentials (SMUPs). The phase cancellation during summation is not considered. We developed a tec