Reference values for the motor unit number index and the motor unit size index in five muscles

被引：11

作者：

Cao Bei ^{[1
]}

Gu Xiaojing ^{[1
]}

Zhang Lingyu ^{[1
]}

Hou Yanbing ^{[1
]}

Chen Yongping ^{[1
]}

Wei Qianqian ^{[1
]}

Ou Ruwei ^{[1
]}

Shang Huifang ^{[1
]}

机构：

[1] Sichuan Univ, West China Hosp, Dept Neurol, 37 Guoxue Xiang, Chengdu 610041, Sichuan, Peoples R China

来源：

MUSCLE & NERVE | 2020年 / 61卷 / 05期

关键词：

healthy individual; motor unit number index; motor unit size index; neuromuscular disease; neurophysiological biomarker; reference values; HEALTHY-SUBJECTS;

D O I：

10.1002/mus.26837

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Introduction Few reference values have been established for the motor unit number index (MUNIX) and motor unit size index (MUSIX). In this study we aimed to investigate the features of MUNIX in healthy individuals for five muscles. Methods We measured the MUNIX in the right abductor pollicis brevis (APB), abductor digiti minimi (ADM), biceps brachii (BB), tibialis anterior (TA), and trapezius (TR) muscles. Results The study enrolled 76 male and 74 female participants. The mean MUNIX and mean MUSIX of the right APB, ADM, BB, TA, and TR muscles were 191.0 +/- 43.6, 179.1 +/- 38.8, 179.7 +/- 36.2, 152.1 +/- 38.8, and 166.1 +/- 40.7; and 60.4 +/- 12.5, 59.3 +/- 13.7, 43.8 +/- 11.5, 41.3 +/- 10.7, and 49.1 +/- 15.2, respectively. MUNIX in these five muscles was inversely related to age. Discussion The establishment of reference values for MUNIX and MUSIX in five muscles may help in monitoring the progression of neuromuscular diseases.

引用

页码：657 / 661

页数：5

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