胸锁乳突肌同心针电极的参考抖动值。

Reference jitter values for the sternocleidomastoid muscle with concentric needle electrodes.

机构信息

Department of Neurology, Marmara University School of Medicine, Istanbul, Turkey.

出版信息

Muscle Nerve. 2021 Jan;63(1):116-119. doi: 10.1002/mus.27094. Epub 2020 Nov 2.

DOI:10.1002/mus.27094

PMID:33067804

Abstract

BACKGROUND

The aim of this study was to establish reference jitter values for the voluntary activated sternocleidomastoid (SCM) muscle using a concentric needle electrode (CNE).

METHODS

The study included 39 healthy participants (20 female and 19 male) aged 18-77 y. Jitter was expressed as the mean consecutive difference (MCD) of 80-100 consecutive discharges. Filters were set at 1 and 10 kHz. The mean MCDs for all participants were pooled, and the mean value +2.5 SD was accepted as the upper limit for the mean MCD. The upper limit for individual MCD was calculated using +2.5 SD of the upper 10th percentile MCD for individual participants.

RESULTS

Mean age of the participants was 45 ± 14.5 y. Mean MCD was 16.20 ± 2.23 μs (range: 12-21 μs), and the upper limit of normal for mean MCD was 21.8 μs. The mean value for 823 individual jitters was 23.3 ± 4.61 μs (range: 6.6-36.9 μs), and the upper limit of normal for each individual jitter was 34.6 μs.

CONCLUSIONS

The present findings indicate that upper normal limit for mean MCD is 22 μs and for individual data it is 35 μs.

摘要

背景

本研究旨在使用同心针电极（CNE）为自愿激活的胸锁乳突肌（SCM）建立参考抖动值。

方法

该研究纳入了 39 名年龄在 18-77 岁的健康参与者（20 名女性和 19 名男性）。抖动表示为 80-100 个连续放电的平均连续差异（MCD）。滤波器设置为 1 和 10 kHz。所有参与者的平均 MCD 均被汇总，平均值+2.5 SD 被接受为平均 MCD 的上限。个体 MCD 的上限是通过个体参与者第 10 个百分位 MCD 的+2.5 SD 计算得出的。