Sherwood A M, Graves D E, Priebe M M
Rehabilitation Research and Development Center of Excellence on Healthy Aging with Disabilities, Department of Veterans Affairs Medical Center, Department of Physical Medicine and Rehabilitation, Baylor College of Medicine, Housto.
J Rehabil Res Dev. 2000 Jan-Feb;37(1):41-52.
This study of measures of spasticity, or altered motor control, compares the clinically used Ashworth scale with a method based on surface electromyographic (sEMG) recordings called brain motor control assessment (BMCA) in a group of 97 subjects with spinal cord injury (SCI) and varying levels of motor dysfunction. In this paper, we describe how sEMG-derived scores relate to the severity of spasticity as judged clinically. When sEMG data from passive movements from the BMCA were analyzed by Ashworth category, we found that when the sEMG data were averaged for a limb, there was a significant difference between scores for those with Ashworth 0 vs. 2 and 3, and 1 vs. 2 and 3 (p<0.001), but not between 0 and 1. Analysis of the individual muscle scores improved the discrimination between Ashworth categories. Superiority of sEMG data over Ashworth category as an objective quantification of altered motor control ("spasticity") is argued.
这项关于痉挛测量或运动控制改变的研究，在97名脊髓损伤（SCI）且运动功能障碍程度各异的受试者中，将临床使用的Ashworth量表与一种基于表面肌电图（sEMG）记录的方法——脑运动控制评估（BMCA）进行了比较。在本文中，我们描述了源自sEMG的评分与临床判断的痉挛严重程度之间的关系。当按Ashworth分级对BMCA被动运动的sEMG数据进行分析时，我们发现，将肢体的sEMG数据进行平均后，Ashworth 0级与2级和3级、1级与2级和3级之间的评分存在显著差异（p<0.001），但0级与1级之间无显著差异。对单个肌肉评分的分析提高了Ashworth分级之间的区分度。文中认为，作为对改变的运动控制（“痉挛”）的客观量化，sEMG数据优于Ashworth分级。
