Motor Unit Number Estimation of the Second Lumbrical Muscle in Human Hand

Zong, Ya; Lu, Zhiyuan; Chen, Maoqi; Deng, Lianfu; Xie, Qin; Zhou, Ping

doi:10.3389/fphys.2022.854385

Cited by 5 publications

(5 citation statements)

References 22 publications

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“…The results on MScanFit MUNE of the SL muscle were similar to a previous study in a United States (US) center also performed by our group, although the CMAP amplitude was slightly smaller in the current study (Zong et al, 2022a ). To the best of our knowledge, these are only two studies on MUNE of the SL muscle.…”

Section: Discussionsupporting

confidence: 92%

A single center report of MScanFit motor unit number estimation in five muscles of healthy subjects

Song

Cui

Zong

et al. 2023

Front. Hum. Neurosci.

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The objective of this study was to estimate the number of motor units in 5 muscles from healthy individuals using the MScanFit program based on compound muscle action potential (CMAP) scan recordings. The examined muscles included first dorsal interosseous (FDI), abductor pollicis brevis (APB), abductor digiti minimi (ADM), second lumbrical (SL), and abductor hallucis (AH). CMAP scans were recorded from a total of 24 healthy participants. Motor unit number estimation (MUNE) values were derived from the MScanFit program. The average MUNE was 136.1 ± 31.1 (mean ± standard deviation) for the FDI, 134.9 ± 37.4 for the APB, 127.3 ± 32.3 for the ADM, 39.6 ± 8.3 for the SL, and 143.9 ± 28.9 for the AH muscles. Findings of the study provide useful information of the MScanFit MUNE for the examined muscles of healthy subjects from a single center.

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Section: Discussionsupporting

confidence: 92%

A single center report of MScanFit motor unit number estimation in five muscles of healthy subjects

Song

Cui

Zong

et al. 2023

Front. Hum. Neurosci.

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“…El análisis por el software MScanFit toma en promedio 3 minutos (Bostock, 2016). El procedimiento total puede completarse entre 10 a 20 minutos aproximadamente (Zong, Lu, Chen, Deng, et al, 2022), .…”

Section: Nombre De La Fuente: Propiounclassified

Motor unit number of the first dorsal interosseous muscle estimated from CMAP scan with different pulse widths and steps

Zong

Li-ning

et al. 2020

J. Neural Eng.

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Estimación del número de unidades motoras del abductor corto del pulgar mediante el método exploración del potencial de acción muscular compuesto (MScanFit) en adultos sanos: valores de referencia Introducción: La exploración del PAMC MScanFit es un método MUNE novedoso que cuantifica el número de unidades motoras, es reproducible, sensible al cambio, preciso y toma un corto tiempo.Objetivo: estimar el número de unidades motoras en el musculo abductor corto del pulgar, usando el método MScanFit en personas adultos sanos de Colombia.Metodología: se realizaron registros en el abductor corto del pulgar en individuos sanos,

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“…Existing studies reported that the test–retest repeatability of MScanFit MUNE was excellent using the same electrode for CMAP scan recordings. For example, the ICC of test–retest repeatability achieved 0.93, 0.90, and 0.96 in our previous studies on the abductor hallucis ( Li et al, 2018 ), the anconeus ( Zong et al, 2022b ), and the second lumbrical ( Zong et al, 2022a ) muscles, respectively. ICCs greater than 0.8 were also reported for MScanFit MUNE in three repeated tests on the APB, FDI, and ADM muscles ( Higashihara et al, 2020 ).…”

Section: Discussionmentioning

confidence: 74%

Effect of surface electrode recording area on compound muscle action potential scan processing for motor unit number estimation

Zhang,

Lu,

Gong

et al. 2024

Front. Neurosci.

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IntroductionMScanFit is a model-based algorithm for motor unit number estimation (MUNE) from compound muscle action potential (CMAP) scan data. It is a clinically applicable tool because of its quick and automatic implementation. Electrodes with different recording areas were employed to record CMAP scan data in existing studies. However, the effect of electrode recording area on MScanFit MUNE and other CMAP scan parameters has not been studied.MethodsCMAP scan was performed on the abductor pollicis brevis muscle of both hands on 14 healthy subjects using three different electrodes with recording areas of 10 mm × 10 mm, 11 mm × 14 mm, and 22 mm × 26 mm, respectively. Motor unit number was estimated using MScanFit for each CMAP scan. Two motor unit number index parameters, i.e., D50 and step index (STEPIX), were also derived from the CMAP scan data.ResultsNo significant difference in D50, STEPIX, and MScanFit MUNE was observed across three different electrode recording areas, although the amplitude of CMAP decreased significantly when a larger electrode was used. Intraclass correlation coefficients of 0.792 and 0.782 were obtained for MScanFit MUNE and STEPIX, respectively.DiscussionCompared with CMAP amplitude, D50, STEPIX, and MScanFit MUNE are less sensitive to variation in electrode recording area. However, the repeatability of MScanFit MUNE could be compromised by the inconsistency in the electrode recording area.

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Motor Unit Number Estimation of the Second Lumbrical Muscle in Human Hand

Cited by 5 publications

References 22 publications

A single center report of MScanFit motor unit number estimation in five muscles of healthy subjects

A single center report of MScanFit motor unit number estimation in five muscles of healthy subjects

Motor unit number of the first dorsal interosseous muscle estimated from CMAP scan with different pulse widths and steps

Effect of surface electrode recording area on compound muscle action potential scan processing for motor unit number estimation

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