The Medical Research Council Manual Muscle Testing Scale, or MRC Scale, is a scale from 0 to 5 which is used to measure muscle power. A higher numeric value was associated with higher strength. The scale was developed by the Medical Research Council in 1943.
The MRC Scale is also known as the Oxford Scale.
Table: MRC ratings [1] | |
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MRC Rating (0…5) | Description |
0 | No activation; the muscle is completely paralyzed. |
1 | Minuscule activation; the muscle may twitch or move a small amount. |
2 | Muscle activation with full range of motion, but with the effects of gravity excluded. |
3 | Muscle activation with full range of motion and against the effects of gravity. |
4 | Muscle activation with full range of motion, against the effects of gravity, and a moderate amount of resistance. |
5 | Muscle activation with full range of motion and a significant amount of resistance. |
Table: Abbreviations used for muscle groups with the MRC scale | |
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Muscle Group | Abbreviation |
Ankle dorsiflexors | AD |
Ankle plantar flexors | AP |
Common finger extensors | CFE |
Elbow extensors | EE |
Elbow flexors | EF |
Hip abductors | HAB |
Hip adductors | HAD |
Hip extensors | HE |
Hip flexors | HF |
Knee extensors | KE |
Knee flexors | KF |
Neck extension | NE |
Neck flexion | NF |
Shoulder abductors | SA |
Shoulder external rotators | SER |
Thumb flexors | TF |
Wrist extensors | WE |
Wrist flexors | WF |
This section has not been completed.