Grading of muscle power
- 1 June 1984
- journal article
- research article
- Published by Wolters Kluwer Health in International Journal of Rehabilitation Research
- Vol. 7 (2) , 173-182
- https://doi.org/10.1097/00004356-198406000-00005
Abstract
The MRC [Medical Research Council] scale for grading muscle power in stages from 0 to 5 has been compared with an analog scale in which power is expressed as a percentage of the maximum expected for that muscle. Twenty therapists examined many patients in a series of comparative tests. The MRC grade is more reliable and accurate for this type of clinical assessment in weak muscles, that is grades 0-3 on the MRC scale or 0-62% on the analog scale. The analog scale is more reliable an accurate for the assessment of stronger muscles, that is grades 4 and 5 of the MRC scale or 62-100% on the analog scale. Analog scales could be usefully adopted when testing bulky muscles operating at 50% or more of their normal power.This publication has 0 references indexed in Scilit: